WebBased on their shared features, scientists reasoned that perhaps the theropods were the ancestors of birds. When paleontologists built evolutionary trees to study the question, they were even more convinced. The birds are simply a twig on … WebA. they are ornithischian dinosaurs B. they are characterized by having beaks, bills and crests C. they had more complex chewing than other dinosaurs D. all of the above D. all of the above Derived ornithopods such as hadrosaurids had complex dental batteries that allowed them to chew their food finely in their mouths A. True B. False A. True

Did ornithopods have feathers? Homework.Study.com

WebMar 8, 2024 · Technically speaking, ornithopods (including hadrosaurs) were plant-eating dinosaurs with bird-shaped hips, three- or four-toed feet, powerful teeth and jaws, and a … WebJun 26, 2024 · Highly unlikely, as birds already existed during the Dinosaur era and still exist to this day, showing how advantageous their overall adaptations were from their … how did group areas act affect people\\u0027s lives

Origin of birds - Wikipedia

WebADJ of, relating to, or belonging to the Ornithischia, an order of dinosaurs that included the ornithopods, stegosaurs, ankylosaurs, and triceratops 鸟臀目恐龙的 ... William Hammer of Augustana College found the new creature -- a four- to five-foot ornithischian or bird-hipped dinosaur that he believes is related to the fabrosaur or ... WebDec 13, 2024 · Ornithopods were large bipedal herbivorous dinosaurs. The term "ornithopod" means "bird-footed", and the group is so named for their bipedal stance. Like most herbivores in the Mesozoic Era,... WebBecause it phylogenetically closer to birds than to other animals Archosaurs are made up of crocodiles, pterosaurs, dinosaurs In dinos, the sacral vertebrae are fused A common feature of all Mesozoic climates was no polar ice caps The oldest confirmed dinos came from Patagonia, Argentina The earliest dinos, from oldest to youngest, are how did group areas act affect people\u0027s lives