Podcast
Questions and Answers
What was a major factor in the rise of dinosaurs?
What was a major factor in the rise of dinosaurs?
What was one of the possible causes of the Permian extinction event?
What was one of the possible causes of the Permian extinction event?
What is the defining characteristic of the Paleozoic era?
What is the defining characteristic of the Paleozoic era?
What is the name of the supercontinent that existed during the Permian period?
What is the name of the supercontinent that existed during the Permian period?
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What type of plants dominated during the Permian period?
What type of plants dominated during the Permian period?
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Which of the following is NOT an index fossil?
Which of the following is NOT an index fossil?
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What is the main use of index fossils in geological dating?
What is the main use of index fossils in geological dating?
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Which period saw the first appearance of true flies?
Which period saw the first appearance of true flies?
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What major event occurred during the Cambrian period?
What major event occurred during the Cambrian period?
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Which period is known as "The Age of Fishes"?
Which period is known as "The Age of Fishes"?
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Which of the following periods saw the first appearance of vascular plants?
Which of the following periods saw the first appearance of vascular plants?
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What is the defining characteristic of the Vendian/Ediacaran period?
What is the defining characteristic of the Vendian/Ediacaran period?
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What event is thought to have contributed to the mass extinction at the end of the Ordovician period?
What event is thought to have contributed to the mass extinction at the end of the Ordovician period?
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What was the main reason for the oxygen build-up during the mid-Proterozoic?
What was the main reason for the oxygen build-up during the mid-Proterozoic?
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Which of the following periods saw the first appearance of reptiles?
Which of the following periods saw the first appearance of reptiles?
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What is the key difference between relative dating and absolute dating?
What is the key difference between relative dating and absolute dating?
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Which of the following environments would be the least likely to produce fossils?
Which of the following environments would be the least likely to produce fossils?
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What is the primary reason why soft-bodied organisms are rarely found as fossils?
What is the primary reason why soft-bodied organisms are rarely found as fossils?
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Why is it difficult for organisms to fossilize in rainforests?
Why is it difficult for organisms to fossilize in rainforests?
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Which of the following is a key requirement for fossil formation?
Which of the following is a key requirement for fossil formation?
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Why are fossils more commonly found in sedimentary rocks than igneous or metamorphic rocks?
Why are fossils more commonly found in sedimentary rocks than igneous or metamorphic rocks?
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What is the benthic zone, and why is it a favorable location for fossilization?
What is the benthic zone, and why is it a favorable location for fossilization?
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What is the main reason why fossils are rarely found in the Abyssal Zone?
What is the main reason why fossils are rarely found in the Abyssal Zone?
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What is the primary difference in fossilization rates between lakes and rainforests?
What is the primary difference in fossilization rates between lakes and rainforests?
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What was the primary diet of Graptoloidea?
What was the primary diet of Graptoloidea?
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Which of the following is NOT a form of fossil preservation?
Which of the following is NOT a form of fossil preservation?
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Which of these fossil preservations usually occurs in dry and cold places?
Which of these fossil preservations usually occurs in dry and cold places?
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What is the primary difference between an internal mold and an external mold?
What is the primary difference between an internal mold and an external mold?
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Which form of fossilization is known for preserving both soft and hard tissues in incredible detail?
Which form of fossilization is known for preserving both soft and hard tissues in incredible detail?
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What is the primary reason why fossilization is a rare event?
What is the primary reason why fossilization is a rare event?
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What does 'Carbonization' primarily preserve?
What does 'Carbonization' primarily preserve?
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Which of these fossil types provides information about an organism's behavior?
Which of these fossil types provides information about an organism's behavior?
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Which of the following describes the process of fossilization where mineral-rich water seeps through an organism's pores and replaces its original tissues?
Which of the following describes the process of fossilization where mineral-rich water seeps through an organism's pores and replaces its original tissues?
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Which of the following is an example of a trace fossil?
Which of the following is an example of a trace fossil?
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What type of fossils are formed when the outer surface of an organism leaves an imprint in sediment?
What type of fossils are formed when the outer surface of an organism leaves an imprint in sediment?
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What is the primary ecological role of starfish in marine ecosystems?
What is the primary ecological role of starfish in marine ecosystems?
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Which of the following is an example of a mode of fossilization that preserves unaltered remains?
Which of the following is an example of a mode of fossilization that preserves unaltered remains?
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Which of the following distinguishing features is NOT associated with echinoderms?
Which of the following distinguishing features is NOT associated with echinoderms?
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What is the primary difference between fossilization by 'petrifaction' and 'replacement'?
What is the primary difference between fossilization by 'petrifaction' and 'replacement'?
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What type of feeders are blastoid organisms classified as?
What type of feeders are blastoid organisms classified as?
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Which of these fossil preservation types is most likely to preserve the soft tissues of an organism?
Which of these fossil preservation types is most likely to preserve the soft tissues of an organism?
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Which of the following is formed when sediment fills an external mold?
Which of the following is formed when sediment fills an external mold?
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Which of the following is NOT a factor that can lead to the distortion of fossils?
Which of the following is NOT a factor that can lead to the distortion of fossils?
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Which process involves the transformation of original minerals in a fossil to more stable minerals?
Which process involves the transformation of original minerals in a fossil to more stable minerals?
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Which of the following features is characteristic of angiosperms?
Which of the following features is characteristic of angiosperms?
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During which period did angiosperms become dominant on land?
During which period did angiosperms become dominant on land?
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What type of diet do angiosperms primarily follow?
What type of diet do angiosperms primarily follow?
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Which mode of life is typical for angiosperms?
Which mode of life is typical for angiosperms?
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What is the ecological role of angiosperms in terrestrial ecosystems?
What is the ecological role of angiosperms in terrestrial ecosystems?
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Which geological principle states that the oldest rock strata will be on the bottom and the youngest at the top?
Which geological principle states that the oldest rock strata will be on the bottom and the youngest at the top?
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What distinguishes the Green River Formation in terms of fossil preservation?
What distinguishes the Green River Formation in terms of fossil preservation?
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Which of the following laws helps to determine the relative age of a rock layer that cuts through another?
Which of the following laws helps to determine the relative age of a rock layer that cuts through another?
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Which era does the La Brea Tar Pits primarily belong to based on the fossils found there?
Which era does the La Brea Tar Pits primarily belong to based on the fossils found there?
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Which principle states that the oldest layers of sedimentary rocks are located at the bottom?
Which principle states that the oldest layers of sedimentary rocks are located at the bottom?
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What is the main purpose of the principle of cross-cutting relationships?
What is the main purpose of the principle of cross-cutting relationships?
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What does the term 'absolute dating' refer to?
What does the term 'absolute dating' refer to?
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What is the half-life of Carbon-14?
What is the half-life of Carbon-14?
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Which Lagerstätte is known for the exceptional preservation of soft tissues?
Which Lagerstätte is known for the exceptional preservation of soft tissues?
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Which era is characterized as the Age of Mammals?
Which era is characterized as the Age of Mammals?
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During which period did the earliest birds first appear?
During which period did the earliest birds first appear?
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What type of symmetry is exhibited by brachiopods?
What type of symmetry is exhibited by brachiopods?
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What distinguishes index fossils in geological time divisions?
What distinguishes index fossils in geological time divisions?
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In the principle of inclusions, how is the age of the fragments related to the rock they are found in?
In the principle of inclusions, how is the age of the fragments related to the rock they are found in?
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What major development occurred during the Devonian period?
What major development occurred during the Devonian period?
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What geological feature is the Solnhofen Limestone famous for?
What geological feature is the Solnhofen Limestone famous for?
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Which period marks the beginning of the Age of Invertebrates?
Which period marks the beginning of the Age of Invertebrates?
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What type of symmetry can be found in a sand dollar?
What type of symmetry can be found in a sand dollar?
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What defines a Konservat-Lagerstätte?
What defines a Konservat-Lagerstätte?
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What is the correct order of the three periods in the Mesozoic Era?
What is the correct order of the three periods in the Mesozoic Era?
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Which radioactive isotope has the longest half-life?
Which radioactive isotope has the longest half-life?
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Which of the following accurately describes the principle of original horizontality?
Which of the following accurately describes the principle of original horizontality?
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What significant feature does Mazon Creek provide for paleontological studies?
What significant feature does Mazon Creek provide for paleontological studies?
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What type of diet do Conus species primarily have?
What type of diet do Conus species primarily have?
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How are Cypraea fossils primarily preserved?
How are Cypraea fossils primarily preserved?
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What ecological role do Conus species play in marine environments?
What ecological role do Conus species play in marine environments?
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Which distinguishing feature is characteristic of Platyceras?
Which distinguishing feature is characteristic of Platyceras?
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What is the primary method by which Turritella is preserved in the fossil record?
What is the primary method by which Turritella is preserved in the fossil record?
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Which genus is known for having a potent venom used for hunting?
Which genus is known for having a potent venom used for hunting?
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Which habitat is primarily associated with Cypraea species?
Which habitat is primarily associated with Cypraea species?
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What type of feeding strategy do Turritella species employ?
What type of feeding strategy do Turritella species employ?
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Which of the following statements is true about Worthenia?
Which of the following statements is true about Worthenia?
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Which characteristic is indicative of Cypraea species?
Which characteristic is indicative of Cypraea species?
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What is the primary habitat for Platyceras?
What is the primary habitat for Platyceras?
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What type of organisms are targeted by Conus species for food?
What type of organisms are targeted by Conus species for food?
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What significant role do Cypraea species play in their ecosystems?
What significant role do Cypraea species play in their ecosystems?
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What is the primary diet of Halysites?
What is the primary diet of Halysites?
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What distinguishing feature helps identify bivalves?
What distinguishing feature helps identify bivalves?
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Which ecological role do bivalves play in aquatic environments?
Which ecological role do bivalves play in aquatic environments?
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What is a key feature of arthropods?
What is a key feature of arthropods?
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How do graptolites primarily feed?
How do graptolites primarily feed?
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In which geological periods did Halysites exist?
In which geological periods did Halysites exist?
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What is the mode of preservation commonly found in bivalve fossils?
What is the mode of preservation commonly found in bivalve fossils?
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What habitat do all the animals in the content primarily occupy?
What habitat do all the animals in the content primarily occupy?
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What was the method of preservation for graptolites as mentioned?
What was the method of preservation for graptolites as mentioned?
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What term describes the branches of Dendroidea?
What term describes the branches of Dendroidea?
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Which group does the term 'chelicerates' refer to?
Which group does the term 'chelicerates' refer to?
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When did bivalves primarily flourish according to the given information?
When did bivalves primarily flourish according to the given information?
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What unique characteristic defines the group Hemichordata?
What unique characteristic defines the group Hemichordata?
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What is a primary characteristic of echinoderms like brittle stars?
What is a primary characteristic of echinoderms like brittle stars?
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What mode of life do most Foraminifera exhibit?
What mode of life do most Foraminifera exhibit?
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How does the structural evolution of Fusulinids manifest over time?
How does the structural evolution of Fusulinids manifest over time?
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What role do brittle stars play in their ecosystems?
What role do brittle stars play in their ecosystems?
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What is a distinguishing feature of Foraminifera?
What is a distinguishing feature of Foraminifera?
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What is the diet of Fusulinida?
What is the diet of Fusulinida?
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During which geological period did the Foraminifera first appear?
During which geological period did the Foraminifera first appear?
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What is the ecological significance of Foraminifera?
What is the ecological significance of Foraminifera?
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What type of habitat does the genus Triticites prefer?
What type of habitat does the genus Triticites prefer?
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Which of the following statements about the mode of life of brittle stars is correct?
Which of the following statements about the mode of life of brittle stars is correct?
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What major evolutionary change is observed in fusulinids over their time on Earth?
What major evolutionary change is observed in fusulinids over their time on Earth?
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How do Foraminifera capture food?
How do Foraminifera capture food?
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What contribution do brittle stars make to their ecosystems?
What contribution do brittle stars make to their ecosystems?
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Which of the following is a characteristic of the order Rotaliida?
Which of the following is a characteristic of the order Rotaliida?
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What is the primary ecological role of the Rotaliida in marine environments?
What is the primary ecological role of the Rotaliida in marine environments?
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How do adult sponges primarily obtain their food?
How do adult sponges primarily obtain their food?
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Which of the following accurately describes the mode of life of the genus Astraeospongia?
Which of the following accurately describes the mode of life of the genus Astraeospongia?
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What distinguishes the class Hexactinellida from other sponge classes?
What distinguishes the class Hexactinellida from other sponge classes?
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What type of habitat did the genus Hydnoceras occupy?
What type of habitat did the genus Hydnoceras occupy?
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Which of the following best describes the preservation method of Tabulata corals?
Which of the following best describes the preservation method of Tabulata corals?
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Which of the following dietary habits is characteristic of Favosites corals?
Which of the following dietary habits is characteristic of Favosites corals?
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What distinguishes the structure of Tabulata corals?
What distinguishes the structure of Tabulata corals?
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What specific time range is associated with the life of the genus Hydnoceras?
What specific time range is associated with the life of the genus Hydnoceras?
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In which aquatic environments did most sponges thrive?
In which aquatic environments did most sponges thrive?
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How did tabulate corals contribute to marine ecosystems?
How did tabulate corals contribute to marine ecosystems?
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What common preservation method occurs when sponge structures dissolve and re-precipitate?
What common preservation method occurs when sponge structures dissolve and re-precipitate?
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What is the likely feeding mechanism utilized by sponges like Astraeospongia?
What is the likely feeding mechanism utilized by sponges like Astraeospongia?
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Which of these is NOT a characteristic of a sedimentary rock?
Which of these is NOT a characteristic of a sedimentary rock?
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Which of the following is a primary producer?
Which of the following is a primary producer?
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Which of the following modes of life describes an organism that is rooted to the floor, unable to move?
Which of the following modes of life describes an organism that is rooted to the floor, unable to move?
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What does the term 'coiled' refer to in an organism's mode of life?
What does the term 'coiled' refer to in an organism's mode of life?
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Which rock type is most likely to contain fossilized dinosaur bones?
Which rock type is most likely to contain fossilized dinosaur bones?
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Which of the following is NOT a characteristic of a conglomerate rock?
Which of the following is NOT a characteristic of a conglomerate rock?
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Which of the following is the correct order of taxonomic classification from least to most specific?
Which of the following is the correct order of taxonomic classification from least to most specific?
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What is the primary function of an organism classified as a 'decomposer'?
What is the primary function of an organism classified as a 'decomposer'?
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Which of the following is NOT classified as a primary producer?
Which of the following is NOT classified as a primary producer?
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Which of the following modes of life describes an organism that floats and is carried along with the ocean's currents?
Which of the following modes of life describes an organism that floats and is carried along with the ocean's currents?
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What type of fossil is most likely to be found in a sandstone?
What type of fossil is most likely to be found in a sandstone?
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What is the primary difference between 'vagrant' and 'pelagic' modes of life?
What is the primary difference between 'vagrant' and 'pelagic' modes of life?
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Flashcards
Fossil formation conditions
Fossil formation conditions
An organism must be buried rapidly and shielded from oxygen to be fossilized.
Sedimentary rocks
Sedimentary rocks
Rocks formed by the accumulation of sediment, essential for fossil formation.
Rapid burial
Rapid burial
The quick covering of an organism by sediment to prevent decomposition.
Anaerobic conditions
Anaerobic conditions
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Benthic zone
Benthic zone
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Fossilization in lakes
Fossilization in lakes
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Rocky intertidal disadvantages
Rocky intertidal disadvantages
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Rainforest decay
Rainforest decay
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Crushed Fossils
Crushed Fossils
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Melted Fossils
Melted Fossils
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Moved Fossils
Moved Fossils
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Eroded Fossils
Eroded Fossils
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Mummification
Mummification
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Encasement in Amber
Encasement in Amber
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Freezing
Freezing
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Tar Preservation
Tar Preservation
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Petrification
Petrification
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External Molds
External Molds
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Casts
Casts
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Trace Fossils
Trace Fossils
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Carbonization
Carbonization
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Unaltered Remains
Unaltered Remains
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Replacement Fossils
Replacement Fossils
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Taxonomic Classification
Taxonomic Classification
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Five Kingdoms
Five Kingdoms
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Invertebrates
Invertebrates
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Vertebrates
Vertebrates
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Bipedal Dinosaur Speed Formula
Bipedal Dinosaur Speed Formula
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Pelagic Mode
Pelagic Mode
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Sessile Organisms
Sessile Organisms
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Primary Producers
Primary Producers
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Carnivores
Carnivores
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Shale
Shale
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Coal Deposits
Coal Deposits
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Phanerozoic Eon
Phanerozoic Eon
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Predation
Predation
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Paleozoic Era
Paleozoic Era
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Mesozoic Era
Mesozoic Era
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Cenozoic Era
Cenozoic Era
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Index Fossils
Index Fossils
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Biogeochronology
Biogeochronology
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Cambrian Period
Cambrian Period
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Permian Period
Permian Period
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Triassic Period
Triassic Period
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Cretaceous Period
Cretaceous Period
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Neogene Period
Neogene Period
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Quaternary Period
Quaternary Period
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Pleistocene Epoch
Pleistocene Epoch
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Holocene Epoch
Holocene Epoch
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Anthropocene
Anthropocene
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Jurassic Period
Jurassic Period
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First Birds
First Birds
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Carboniferous Period
Carboniferous Period
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Devonian Period
Devonian Period
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Mass Extinction
Mass Extinction
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Cambrian Explosion
Cambrian Explosion
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Relative Dating
Relative Dating
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Proterozoic Eon
Proterozoic Eon
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Ordovician Period
Ordovician Period
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Hadean Eon
Hadean Eon
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Ediacaran Period
Ediacaran Period
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Angiosperms
Angiosperms
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Photosynthesis
Photosynthesis
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Vessel elements
Vessel elements
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Dominant land plants
Dominant land plants
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Principle of Superposition
Principle of Superposition
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Principle of Original Horizontality
Principle of Original Horizontality
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Principle of Cross-Cutting Relationships
Principle of Cross-Cutting Relationships
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Principle of Inclusions
Principle of Inclusions
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Absolute Dating
Absolute Dating
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Half-life
Half-life
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Radiometric Dating
Radiometric Dating
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Bilateral Symmetry
Bilateral Symmetry
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Radial Symmetry
Radial Symmetry
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Pentamerism
Pentamerism
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Lagerstätte
Lagerstätte
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Konzentrate-Lagerstätten
Konzentrate-Lagerstätten
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Konservat-Lagerstätten
Konservat-Lagerstätten
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Burgess Shale
Burgess Shale
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Beecher's Trilobite Bed
Beecher's Trilobite Bed
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Echinodermata
Echinodermata
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Aristotle's Lantern
Aristotle's Lantern
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Keystone species
Keystone species
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Foraminifera
Foraminifera
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Benthic
Benthic
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Fusulinids
Fusulinids
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Detritivores
Detritivores
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Omnivores
Omnivores
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Ecological role of Foraminifera
Ecological role of Foraminifera
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Brittle stars
Brittle stars
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Habitat of Echinoderms
Habitat of Echinoderms
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Ecological role of brittle stars
Ecological role of brittle stars
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Long lifespan of some species
Long lifespan of some species
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Food sources for Foraminifera
Food sources for Foraminifera
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Conus shell characteristics
Conus shell characteristics
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Conus feeding mechanism
Conus feeding mechanism
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Conus fossil preservation
Conus fossil preservation
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Conus ecological role
Conus ecological role
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Cypraea shell features
Cypraea shell features
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Cypraea diet
Cypraea diet
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Cypraea historical significance
Cypraea historical significance
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Platyceras habitat
Platyceras habitat
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Platyceras life mode
Platyceras life mode
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Turritella fossil range
Turritella fossil range
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Turritella features
Turritella features
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Turritella ecology
Turritella ecology
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Worthenia habitat
Worthenia habitat
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Worthenia diet
Worthenia diet
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Worthenia preservation mode
Worthenia preservation mode
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Class Asteroidea
Class Asteroidea
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Pentamerous body plan
Pentamerous body plan
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Ecological role of starfish
Ecological role of starfish
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Class Blastoidea
Class Blastoidea
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Genus Pentremites
Genus Pentremites
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Crinoidea
Crinoidea
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Echinoderm habitat
Echinoderm habitat
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Water vascular system
Water vascular system
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Fossil significance of starfish
Fossil significance of starfish
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Diet of sea urchins
Diet of sea urchins
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Benthic communities
Benthic communities
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Discovery of Echinoderms
Discovery of Echinoderms
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Nutrient cycling
Nutrient cycling
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Rotaliida
Rotaliida
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Phylum Porifera
Phylum Porifera
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Calcification
Calcification
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Silicification
Silicification
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Filter feeders
Filter feeders
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Genus Astraeospongia
Genus Astraeospongia
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Hydnoceras
Hydnoceras
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Tabulata
Tabulata
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Favosites
Favosites
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Ecological Role
Ecological Role
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Suspension feeders
Suspension feeders
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Colonial organisms
Colonial organisms
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Spicules
Spicules
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Green River Formation
Green River Formation
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La Brea Tar Pits
La Brea Tar Pits
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Law of Superposition
Law of Superposition
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Law of Cross-Cutting Relationships
Law of Cross-Cutting Relationships
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Law of Lateral Continuity
Law of Lateral Continuity
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Class Gastropoda
Class Gastropoda
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Gastropod Diet
Gastropod Diet
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Genus Conus
Genus Conus
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Fossil History of Gastropods
Fossil History of Gastropods
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Mode of Preservation
Mode of Preservation
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Ecological Role of Gastropods
Ecological Role of Gastropods
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Diverse Habitats of Gastropods
Diverse Habitats of Gastropods
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Threats to Gastropods
Threats to Gastropods
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Graptoloidea
Graptoloidea
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Graptolite
Graptolite
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Ecological Role of Graptolites
Ecological Role of Graptolites
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Isotelus rex
Isotelus rex
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Paradoxides davidis
Paradoxides davidis
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Olenellus gilberti
Olenellus gilberti
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Phacops rana
Phacops rana
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Asaphus kowalewskii
Asaphus kowalewskii
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Crotalocephalus gibbus
Crotalocephalus gibbus
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Glossopteris
Glossopteris
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Ecological Role of Glossopteris
Ecological Role of Glossopteris
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Fossilization of Glossopteris
Fossilization of Glossopteris
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Time Scale Range of Graptoloidea
Time Scale Range of Graptoloidea
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Diet of Graptoloidea
Diet of Graptoloidea
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Discovery of Graptolites
Discovery of Graptolites
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Genus Halysites
Genus Halysites
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Habitat of Halysites
Habitat of Halysites
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Mode of Life: Halysites
Mode of Life: Halysites
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Diet of Halysites
Diet of Halysites
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Distinguishing Features of Bivalves
Distinguishing Features of Bivalves
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Diet of Bivalves
Diet of Bivalves
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Mode of Life: Bivalves
Mode of Life: Bivalves
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Arthropods Key Feature
Arthropods Key Feature
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Mode of Preservation: Graptolites
Mode of Preservation: Graptolites
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Ecological Role: Halysites
Ecological Role: Halysites
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Discovery Year: Halysites
Discovery Year: Halysites
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Ecological Role: Bivalves
Ecological Role: Bivalves
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Order Dendroidea
Order Dendroidea
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Habitats of Arthropods
Habitats of Arthropods
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Study Notes
Fossil Formation
- Organisms are preserved in environments shielded from oxidation and bacterial decay.
- Rapid burial by sediment is crucial for preservation.
- Anoxic (lack of oxygen) conditions are essential.
- Sedimentary rocks are the primary environments for fossilization, as igneous/metamorphic rocks' heat and pressure often damage or distort the organism.
- Soft-bodied organisms decompose quickly, limiting fossilization potential.
- Hard parts like skeletons and teeth are preserved long enough for imprints to form within the rock.
Fossil Environments
- Bodies of water are prevalent fossilization sites due to sedimentation.
- Wave-free areas in the ocean maximize preservation.
- Abyssal zone (deep ocean) sediment is often recycled, hindering fossilization.
- Benthic zone (ocean floor) is favorable, especially near land, due to sediment runoff quickly covering dead organisms.
- Lakes, rivers, swamps, deltas and lagoons, are also suitable for fossilization because of sediment deposition.
- Rocky intertidal zones are less amenable to fossilization due to wave action breaking and removing organisms quickly.
- Rainforests do not support fossilization due to rapid decomposition by rain, scavengers, and decomposers.
Fossil Distortion
- Crushed/flattened fossils can result from excessive sediment burial.
- Melted fossils can occur with deep burial, extreme pressure, and heat (metamorphism) in sedimentary rocks.
- Moved fossils can be affected by streams, glaciers, scavengers, rock slides and plate tectonics (uplift).
- Eroded fossils occur when wind, water and sun wear away the fossil.
Modes of Preservation
- Mummification: Extremely rare; preserves soft tissue and bone in dry, cold environments. Not true fossilization.
- Encasement in Amber: Resin from diseased/damaged trees encases organisms, preserving them in a vacuum away from the elements.
- Freezing: Highly rare; preserves whole organisms without chemical or physical alteration in extremely cold temperatures.
- Tar Preservation: Organisms trapped in tar, preserving only hard parts; however, the paraffin in tar can preserve soft tissues, like La Brea Tar Pits.
- Petrification/Silicification: Minerals(like calcium carbonate or silica) replace organic tissues, turning the organism into stone. Preserves soft and hard tissues perfectly.
- External Molds: Imprints of the organism’s surface on rock.
- Internal Molds: Imprints created within the shell/organism of an organism.
- Casts: Sediment fills mold to form replica of organism's shape/form.
- Imprints/Trace Fossils: Evidence of life, such as footprints, trails, burrows, borings, predation marks, and coprolites (fossilized feces).
- Carbonization/Coalification: Organic matter lost, leaving behind a carbon outline. Typically found in 2D, very thin, anoxic environments.
- Recrystallization: Original minerals revert to another stable form changing the organism's morphology.
- Replacement: Minerals completely replace the original hard parts of an organism.
- Unaltered/Actual Remains: Preserves the original organism without physical alteration i.e. freezing, amber, tar, mummification)
Fossil Classification
- Follows a taxonomic hierarchy: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species (Dorky King Phillip Came Over For Good Spaghetti).
- Five kingdoms: Animalia, Plantae, Monera, Fungi, Protoctista.
- Animals are grouped into invertebrates (no backbone) and vertebrates.
Dinosaur Measurements
- Hip hight x 4 = length of footprint.
- Footprint x 10 = head to tail length (bipedal dinosaurs only).
- Speed (bipedal dinosaurs): Stride length ÷ hip height.
Modes of Life
- Pelagic: Free-swimming e.g., fish.
- Sessile: Anchored to the substrate e.g., sea anemones.
- Benthic: Lives on the ocean floor e.g., crabs.
- Vagrant: Free-swimming.
- Motile: Capable of movement.
- Coiled: Spiraling around a central point.
- Planktonic: Drifting in water currents.
Nutrition
- Primary Producers: Photosynthetic organisms (plants, algae, etc) that support food webs.
- Consumers: Heterotrophs that consume other organisms.
- Herbivores: Plant-eaters.
- Carnivores: Animal-eaters.
- Parasites: Feed on others without killing them.
- Scavengers: Eat dead organisms.
- Suspension feeders: Filter food from water.
- Deposit feeders: Ingest sediment for food.
- Grazers: Scrape food from surfaces.
- Decomposers: Break down organic matter.
Sedimentary Rocks
- Details about rock types (Sandstones/Siltstones, conglomerates, shale, limestone, coal/coal shales, coquina, diatomite, dolostone, sandstone, limestone chalk, fossiliferous limestone). Associated fossils.
Geologic Time
- Divided into Supereons, Eons, Eras, Periods, Epochs, and Ages.
- Major Eras:
- Precambrian: oldest era, characterized by the absence of hard-bodied organisms.
- Paleozoic (Ancient life): dominated by marine invertebrates.
- Mesozoic (Middle life): ruled by reptiles (dinosaurs).
- Cenozoic (Recent/New life): dominated by mammals.
- Specific periods with examples.
5 Major Extinctions
- List of the five.
Index Fossils
- Index fossils determine the relative ages of rocks; have a wide geographic range, and were only present in a particular period.
Fossil Dating
- Relative Dating: Orders events sequentially (e.g., law of superposition, original horizontality).
- Absolute Dating: Determines the exact ages (e.g., radiometric dating, half-life).
Fossil Symmetry
- Bilateral: Two mirrored halves.
- Radial: Multiple symmetrical parts radiating from the center.
- Pentamerism: Five-part radial symmetry.
- Coiled/Spiral: Coiling around a center point.
- Spherical: Symmetrical around all axes
Lagerstätten
- Exceptional fossil preservation sites, including types (Concentration and Conservation).
- Specific examples described (Burgess Shale, Beecher's Trilobite Bed, Mazon Creek, Ghost Ranch, Solnhofen Limestone, Yixian Formation, Green River Formation, La Brea Tar Pits).
Specific Laws
- Summary of principles of relative dating (law of superposition, cross-cutting relationships, original horizontality, inclusions, lateral continuity).
Selected Animal Genera
- Detailed information about the fossil history, habitat, lifestyle, preservation, diet, distinguishing features, and discovery for Genus Conus, Cypraea, Platyceras, Turritella, Worthenia, Echinoderms, Asteroidea (starfish), Crinoidea (sea lilies) , Blastoidea (stalked echinoderms), Sea Urchins (Class Echinoidea), Ophiuroidea (brittle stars), Porifera (sponges), Bryozoa, Foraminifera, Fusulinida, Triticites, Rotaliida. Emphasis on their importance in understanding past environments and evolutionary connections.
Selected Plant Genera
- Detailed information about the fossil history, habitat, lifestyle, preservation, diet, distinguishing features, and discovery for Kingdom Plantae, Pteridospermatophyta (seed ferns), Angiosperms, Gymnosperms. Emphasis on their importance.
Additional notes:
- Emphasis on the use of fossils in understanding past environments and evolutionary processes.
- Emphasis on how organisms' lives, diets, and environments are reflected in fossils.
Studying That Suits You
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Description
Test your knowledge on key events in paleontology and geology with this quiz. Explore topics such as the rise of dinosaurs, the Permian extinction, and various geologic periods. Challenge yourself with questions on index fossils and significant characteristics of different eras.