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Questions and Answers
Brachiopods are ______ feeder with some genera adapted to bottom dwelling habitat.
filter
Brachiopods shell consists of two valves that are unequal, but, the valves are symmetrical about the ______ plane.
median
Most brachiopod shells are calcareous (calcium carbonate) in composition, with some others having phosphatic (phosphorus) and ______ composition.
chitinous
The new classification Brachiopods consisting of Subphylum Linguliformea, Craniiformea, and ______.
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Brachiopods are filter feeder with some genera adapted to bottom dwelling ______.
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The larger of the two valves are called Ventral or ______ valves, and the shorter one is known as Dorsal or Brachial valve.
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Brachiopods shell consists of two valves that are unequal, but, the valves are symmetrical about the ______ plane.
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Many brachiopod species are stratigraphically useful for some horizons, because they are easy to identify, widely distributed and its common occurrence in almost all ______ environments.
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Study Notes
Brachiopods Overview
- Brachiopods are filter feeders, with some species adapted to bottom-dwelling habitats.
- Their shells consist of two unequal valves that are symmetrical about the bilateral plane.
Shell Composition
- Most brachiopod shells are primarily calcareous, composed of calcium carbonate.
- Some brachiopods have shells with phosphatic composition, which includes phosphorus.
Classification
- Brachiopods are classified into three subphyla: Linguliformea, Craniiformea, and others.
Valve Structure
- The larger valve is referred to as the ventral or pedicle valve, while the smaller valve is known as the dorsal or brachial valve.
Stratigraphic Significance
- Many brachiopod species serve as important index fossils, beneficial for identifying specific geological horizons, due to their ease of identification and widespread distribution across various environments.
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Description
Test your knowledge about the characteristics and habitats of brachiopods with this quiz. Learn about the composition of their shells, their filter-feeding behavior, and their adaptation to bottom-dwelling habitats.
