Agaricocrinus
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| File:Coelocrinidae - Agaricocrinus splendens.JPG | |
| Fossil specimen of Agaricocrinus splendens from United States, on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
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Agaricocrinus
Austin 1851
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Agaricocrinus is a genus of extinct crinoid, belonging to the family Coelocrinidae.
These stationary upper-level epifaunal suspension feeders lived in the Carboniferous period and in the Osagean age of United States, from 353.8 to 345.0 Ma. [1][2]
Selected species
- Agaricocrinus americanus Roemer
- Agaricocrinus splendens Miller and Gurley
Description
Like extant crinoids, Agaricocrinus species was anchored to a hard surface by a holdfast out of which grew an articulated stalk. On top of this was a calyx with a number of feather-like arms. Each arm bore short branches known as pinnules and from these cirri were extended which sifted plankton from the water flowing past.[3]
References
- ↑ 1.0 1.1 The Paleobiology Database
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