Edgarosaurus

Genus: Edgarosaurus Taxon tags: Edgarosaurus Author: Druckenmiller 2002 Taxon status: Valid Classification: Plesiosauria → Plesiosauroidea → Cryptoclidia → Xenopsaria → Leptocleidia → Polycotylidae Locality: USA → Montana → South Central Montana Age: Cretaceous → Early Cretaceous → Albian → Late Albian Horizon (rock units): Cretaceous → Lower Cretaceous → Albian → Upper Albian → Thermopolis Shale