Muensteroceras parallelum
©
1998 Dr. Richard Paselk, Humboldt State University Natural History Museum
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Agaricocrinus americanus
©
2005 The Virtual Fossil Museum
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Barycrinus asteriscus and Macrocrinus sp.
©
1998 Dr. Richard Paselk, Humboldt State University Natural History Museum
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Barycrinus stellatus
©
2005 The Virtual Fossil Museum
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Cyathocrinites iowensis
©
2005 The Virtual Fossil Museum
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Cyathocrinites multibrachiatus
©
2004 Indiana State Museum, Indiana Geological Survey, and Indiana University
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Macrocrinus mundulus
©
2005 The Virtual Fossil Museum
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Onychocrinus exculptus
©
2005 The Virtual Fossil Museum
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Onychocrinus exculptus
©
2006 David Smith, UCMP
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