cmkosemenillustrated: “ Two Polycotylus plesiosaurs, viewed from the top. New discoveries indicate these prehistoric marine reptiles were quite chunky - more like seals and walruses than snakes or crocodiles. Polycotylus was a distant relative of the.
the James and Louise Temerty Galleries of the Age of Dinosaurs of the Royal Ontario Museum. Adult skull and jaws of Corythosaurus casuarius Lambeosaurine hadrosaur Ornithischian Dinosaur Dinosaur Provincial Park, Alberta Late Cretaceous 76 million years old.
A reconstruction of an early giant among horned dinosaurs still carries the label Pentaceratops among the fossils in the Sam Noble Museum of Natural History in Norman, Okla., but may deserve to be considered a new species, Titanoceratops.