''Platycrinitidae'' is an extinct family of Paleozoic stalked

crinoid Crinoids are marine animals that make up the Class (biology), class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or coma ...

s.Encyclopedia of Life
/ref> These stationary upper-level epifaunal suspension feeders lived during the

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, w ...

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 Pale ...

and the Carboniferous periods, from 416.0 to 259.0 Ma.

Genera

*'' Camptocrinus'' *'' Neoplatycrinus'' *''

Platycrinites ''Platycrinites'' are an extinct genus of Paleozoic stalked crinoids belonging to the family Platycrinitidae. These stationary upper-level epifaunal suspension feeders lived during the Devonian, Permian and the Carboniferous periods, from 376.1 ...

'' *'' Pleurocrinus''

References

Camerata (Crinoidea) Prehistoric echinoderm families Devonian first appearances Permian extinctions {{paleo-crinoidea-stub