Cyathocrinitidae is an
extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
family of
crinoids belonging to the order
Cladida
Cladida is a major subgroup of crinoids with a complicated taxonomic history. Cladida was originally applied to a wide assortment of extinct crinoids with a dicyclcic calyx. Under this original definition, cladids would represent a paraphyletic ...
.
These stationary intermediate-level epifaunal suspension feeders lived from the Silurian to the
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...
periods (436.0 - 254.0 Ma).
[
]
Genera
*'' Cyathocrinites''
*''Cyathocrinus
''Cyathocrinus'' is an extinct genus of crinoids belonging to the family Cyathocrinitidae.
It is considered related to genera like Cyathocrinites, Gissocrinus, Ichthyocrinus, Meniscocrinus, Occiducrinus.
These stationary intermediate-level e ...
''
*'' Gissocrinus''
*'' Ichthyocrinus''
*'' Meniscocrinus''
*'' Occiducrinus''
[
]
References
Cladida
Prehistoric echinoderm families
Silurian first appearances
Permian extinctions
{{paleo-crinoidea-stub