brachiopod
/'brækiəpɔd/
Definition
Noun:
- A marine invertebrate animal belonging to the phylum Brachiopoda. It has a bivalve (two-part) shell and uses a pair of coiled, arm-like structures (lophophores) bearing tentacles to capture food particles from the water. Brachiopods are found worldwide, often in deep or cold waters.
Adjective:
- Of, relating to, or characteristic of the phylum Brachiopoda.
Usage Examples
- Noun:
- The fossil record shows that brachiopods were much more abundant during the Paleozoic era.
- Scientists collected several brachiopods from the ocean floor to study their feeding mechanisms.
- Adjective:
- The researcher specialized in brachiopod morphology.
- This limestone layer is rich in brachiopod fossils.
Advanced Usage
- "Inarticulate brachiopod": A class of brachiopods (Lingulata) whose shells are held together only by muscles and lack a proper hinge.
- Lingula is a well-known genus of inarticulate brachiopod.
- "Articulate brachiopod": A class of brachiopods (Rhynchonellata) whose two shell valves are connected by a complex hinge with teeth and sockets.
- The articulate brachiopod fossil was perfectly preserved, showing the detailed hinge structure.
Variants and Related Words
- Brachiopoda (n): The phylum name to which brachiopods belong.
- Brachiopoda is a phylum of lophophorate animals.
- Lophophore (n): The characteristic feeding organ, a horseshoe-shaped or coiled structure bearing ciliated tentacles, found in brachiopods and some other invertebrates.
- The brachiopod extends its lophophore to filter feed.
Synonyms
- Lamp shell: A common name for brachiopods, derived from their shell's resemblance to ancient Roman oil lamps.
- The "lamp shell" is another name for a brachiopod.
Related Phrases and Terms
- "Brachiopod fauna": Refers to the community or assemblage of brachiopod species in a particular area or geological period.
- The Silurian period is noted for its diverse brachiopod fauna.
- "Brachiopod valve": Refers to one of the two halves of the brachiopod's shell.
- The pedicle valve is typically the larger of the two brachiopod valves.
Adjective
-
of or belonging to the phylum Brachiopoda
Noun
-
marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide
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