Avitelmessus grapsoideusFrom the Cretaceous in Mississippi
©
1998 Dr. Richard Paselk, Humboldt State University Natural History Museum
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LeperditiaFrom the Silurian in West Virginia
©
2003 Thomas Kammer
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Pulalius vulgarisFrom the Tertiary in Washington
©
2002 Andrew Bland
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Carinaranina schenckiFrom the Tertiary in Oregon
©
2003 Andrew Bland
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Ocypode quadrataFrom the Quaternary in Florida
©
2003 Roger Portell, Florida Museum of Natural History
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Squilla empusaFrom the Quaternary in Connecticut
©
2005 Yale Peabody Museum
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Brachiocaris pretiosaFrom the Cambrian in Utah
©
2005 The Virtual Fossil Museum
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Cancer (Romaleon) wahkiakumensisFrom the Tertiary in Washington
©
2006 North America Research Group
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Cyclus obesusFrom the Carboniferous in Illinois
©
2005 The Virtual Fossil Museum
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