Questions and Answers
What is Acanthostega known as?
What class contains all amphibians?
Amphibia
Which order contains frogs and toads?
Anura
What order do caecilians belong to?
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Which order includes salamanders, newts, and mudpuppies?
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What phylum contains all amphibians?
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What is Eusthenopteron known for?
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What transitional fossil has adaptations for terrestrial life?
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What are Tetrapoda?
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What is Tiktaalik known for?
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What subphylum contains all amphibians?
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Study Notes
Classification of Amphibians Study Notes
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Acanthostega: An early Devonian tetrapod known for well-formed limbs with distinct digits on both forelimbs and hind limbs, indicative of the evolutionary transition from aquatic to terrestrial life.
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Amphibia: The class that encompasses all amphibians, characterized by their dual life stages, including both aquatic larval and terrestrial adult forms.
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Anura: The order comprising frogs and toads, recognized for their jumping abilities, smooth or bumpy skin, and adaptations to various habitats.
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Apoda: The order that includes caecilians, which are legless and burrowing amphibians, adapted for a subterranean lifestyle.
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Caudata: The order containing salamanders, newts, and mudpuppies, noted for their elongated bodies, tails, and the ability to regenerate lost limbs.
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Chordata: The phylum classifying all amphibians, characterized by the presence of a notochord, dorsal nerve cord, and pharyngeal slits at some stage of development.
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Eusthenopteron: A late Devonian lobe-finned fish exhibiting key limb structures, including an upper arm bone and two forearm bones, marking an important step in vertebrate evolution.
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Ichthyostega: A significant transitional fossil featuring a developed shoulder girdle, robust limb bones, and muscles, showcasing adaptations essential for life on land.
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Tetrapoda: A clade of animals distinguished by four limbs, important in the evolution of vertebrates adapting to terrestrial environments.
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Tiktaalik: A crucial transitional fossil that displays morphological features bridging lobe-finned fish and early tetrapods, highlighting the evolutionary shift towards land-dwelling lifestyles.
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Vertebrata: The subphylum that includes all amphibians, defined by the presence of a backbone and a complex nervous system, facilitating advanced movement and sensory capabilities.
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Description
Enhance your knowledge of amphibians with these flashcards. This quiz covers important classifications, orders, and historical examples within the amphibian class. Perfect for students and enthusiasts alike!
