Genus OPISTHIAS

Kingdom / Phylum . . . . . . . .
Subphylum / Superclass . . . .
Class / Subclass / Infraclass
Division / Superorder / Order
Suborder / Infraorder . . . . . .
Superfamily / Family . . . . . . .
Subfamily / Genus . . . . . . . . .
Animalia / Chordata
Cephalochordata / Gnathostomata
Reptilia / Diapsida / Lepidosauromorpha
n.a. / Lepidosauria / Sphenodontida
n.a. / n.a.
n.a. / Sphenodontidae
n.a. / Opisthias
Age:
Distribution:
Late Jurassic
North America

Depicted on:

United States, 1997 (position 8 of sheet)
 
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