| 词条 | Agaricocrinus |
| 释义 |
| fossil_range = {{fossil range|Carboniferous}}[1] | image = Coelocrinidae - Agaricocrinus splendens.JPG | image_caption= Fossil specimen of Agaricocrinus splendens from United States, on display at Galerie de paléontologie et d'anatomie comparée in Paris | regnum = Animalia | phylum = Echinodermata | classis = Crinoidea | ordo = | familia = Coelocrinidae | genus = Agaricocrinus | genus_authority = Austin 1851 }} Agaricocrinus is a genus of extinct crinoids, 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
DescriptionLike 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] References1. ^1 The Paleobiology Database {{Taxonbar|from=Q18209077}}{{paleo-crinoidea-stub}}2. ^{{cite journal |author1=Meyer, David L. |author2=Ausich, William I. |year=1997 |title=Morphologic Variation within and among Populations of the Camerate Crinoid Agaricocrinus (Lower Mississippian, Kentucky and Tennessee): Breaking the Spell of the Mushroom |journal=Journal of Paleontology |volume=71 |issue=5 |pages=896–917 |jstor=1306565 }} 3. ^{{cite book |title=Zoology |last1=Dorit |first1=R. L. |last2=Walker |first2=W. F. |last3=Barnes |first3=R. D. |year=1991 |publisher=Saunders College Publishing |isbn=978-0-03-030504-7 |pages=790–792 }} 3 : Prehistoric crinoid genera|Carboniferous crinoids|Extinct animals of the United States |
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