a student in a university or college who has not received a first, especially a bachelor's, degree. adjective. 2. having the standing of an undergraduate. 3. of, for, pertaining to, or characteristic of undergraduates.
Matheronodon provincialis has been identified as a member of rhabdodontids - a group of herbivorous bipedal dinosaurs - from the late Campanian period about 84 to 72 million years ago. They were descendants of the iguanodontian dinosaurs from the Upper Jurassic.
Some DNA studies in the 1990s suggested that they evolved in the Cretaceous period when Tyrannosaurus Rex still roamed the Earth. But fossil-based research indicated that the lineage began much later, with the extinction of non-avian dinosaurs and large reptiles creating opportunities for mammals to adapt and evolve into new species.