The Paleontology of North America

Crustaceans from North America

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Avitelmessus grapsoideus From the Cretaceous in Mississippi © 1998 Dr. Richard Paselk, Humboldt State University Natural History Museum	Leperditia From the Silurian in West Virginia © 2003 Thomas Kammer	Pulalius vulgaris From the Tertiary in Washington © 2002 Andrew Bland
Carinaranina schencki From the Tertiary in Oregon © 2003 Andrew Bland	Ocypode quadrata From the Quaternary in Florida © 2003 Roger Portell, Florida Museum of Natural History	Squilla empusa From the Quaternary in Connecticut © 2005 Yale Peabody Museum
Brachiocaris pretiosa From the Cambrian in Utah © 2005 The Virtual Fossil Museum	Cancer (Romaleon) wahkiakumensis From the Tertiary in Washington © 2006 North America Research Group	Cyclus obesus From the Carboniferous in Illinois © 2005 The Virtual Fossil Museum