Cydrocrinus
Cydrocrinus is an extinct genus of crinoids. Fossil recordThis genus is known in the fossil record of the Carboniferous period of United States (age range: 345.3 to 342.8 million years ago).[2] References
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Cydrocrinus
Cydrocrinus is an extinct genus of crinoids. Fossil recordThis genus is known in the fossil record of the Carboniferous period of United States (age range: 345.3 to 342.8 million years ago).[2] References
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