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/Creatures in EP4: Time of the Titans
for Dinosaurs/Creatures in EP4: Time of the Titans in Walking with Dinosaurs: The Revisited
Suggested by alecgroskreutz1
Walking with Dinosaurs: The Revisited is was like a remake version or reboot version of the original documentury show on BBC America.
