Cydrocrinus

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]

gollark: I don't have headphones plugged in.

gollark: Oh, right, sound exists.

gollark: ???

gollark: Exactly. Your velocity relative to the portal is kept.

gollark: This means that you are "based", then, unlike the "cringe" A choosers.

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

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