Genus GRAMMOCERAS

Kingdom / Phylum . . . . . . . . .
Class / Subclass / Infraclass
Division / Superorder / Order
Suborder / Infraorder . . . . . .
Superfamily / Family . . . . . . .
Subfamily / Genus . . . . . . . . .
Animalia / Mollusca
Cephalopoda / Ammonoidea / n.a.
n.a. / n.a. / Ammonitida
n.a. / n.a.
Hildoceratoidea / Hildoceratidae
Grammoceratinae / Grammoceras
Age:
Distribution:
Late Early Jurassic
North America, Europe, Asia

Depicted on:

Cancel, Thouars, France, 1989-2002, with and without frame, G. thouarense.
 
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