Extinct genus of crinoids
Ulrichicrinus
Temporal range: Carboniferous
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Fossil of Ulrichicrinus from Carboniferous of United States
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Scientific classification
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Ulrichicrinus
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Ulrichicrinus 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: from 345.3 to 342.8 million years ago).[2]
References
- ^ Springer, F. 1926. Unusual fossil crinoids: Proceedings of the United States National Museum 67:1–137.
- ^ Paleobiology Database