This dental combination indicates an opportunistic and specialized feeding strategy

gregorii fit as one of the dominant apex predators in the Chinle Formation ecosystems

The presence of numerous specimens found at Ghost Ranch

shows some early adaptations

Ticinosuchus ferox is a basal archosaur that lived in the Middle Triassic

Dolichorhynchops osborni Variant:Unprimed This dental combination indicates anDolichorhynchops osborni was a marine reptile belonging to the plesiosaur group, specifically a polycotylid , that lived during the Late Cretaceous period , approximately 9288 million years ago, when the vast Western Interior Seaway covered central North America. Unlike the classic long necked plesiosaurs, Dolichorhynchops had a short neck, a large head, and a streamlined body , making it a fast and highly efficient swimmer. Its size was considerable,