Cydrocrinus

Extinct genus of crinoids

Cydrocrinus Temporal range: Carboniferous PreꞒ Ꞓ O S D C P T J K Pg N

Fossil of Cydrocrinus from Carboniferous of United States
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Subphylum:	Crinozoa
Class:	Crinoidea
Subclass:	Camerata
Order:	Cladida
Genus:	Cydrocrinus Kirk, 1940 ^[1]

Cydrocrinus is an extinct genus of crinoids.

Fossil records

This genus is known in the fossil records of the Carboniferous period of United States (age range: 345.3 to 342.8 million years ago).^[2]

^ Kirk, E. 1940. Seven new genera of Carboniferous Crinoidea Inadunata. Journal of the Washington Academy of Sciences 30: 321 -
^ Paleobiology Database