Opisthias is a genus of sphenodont reptile. The type species, Opisthias rarus, is known from the Late Jurassic (Kimmeridgian-Tithonian) Morrison Formation of western North America,[2][3] present in stratigraphic zones 2 and 4–6.[4]
Opisthias
Dinosaurs/Creature in The Last Stand of the Jurassic Giants
for Dinosaurs/Creature in The Last Stand of the Jurassic Giants in The World of Dinosaurs
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The World of Dinosaurs a documentary show on MAX channel.
