Search results
Results from the WOW.Com Content Network
Researchers are now proposing a surprising location for the birthplace of dinosaurs, based on the locations of the currently oldest-known dinosaur fossils, the evolutionary relationships among ...
Dinosaurs are a diverse group of reptiles [note 1] of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is a subject of active research.
The Psittacosaurus fossil "strongly suggests that evolution of feathers - and the new skin adaptations - happened at the same time," McNamara said. The dinosaur's scaly skin closely resembled the ...
The book chronicles the evolution of dinosaurs, their rise as the dominant clade, and ends with an account of their extinction from the Chicxulub asteroid. It also includes a discussion of the evolution of feathered dinosaurs and birds' descent from dinosaurs, and an epilogue of sorts discussing the post-dinosaur emergence of mammals.
Evolution of the creodonts, an important group of meat-eating (carnivorous) mammals. 62 Ma Evolution of the first penguins. 60 Ma Diversification of large, flightless birds. Earliest true primates, [who?] along with the first semelid bivalves, edentate, carnivoran and lipotyphlan mammals, and owls.
Thank the "dinosaur renaissance" for the franchise's existence
Each order of dinosaur has slightly differing pelvis bones providing evidence of common descent. Additionally, modern birds show a similarity to ancient saurischian pelvic structures indicating the evolution of birds from dinosaurs. This can also be seen in Figure 5c as the Aves branch off the Theropoda suborder.
Yutyrannus (Simplified Chinese : 华丽羽王龙 Traditional Chinese : 華麗羽王龍 Pinyin : Huà Lì Yǔ Wáng Lóng meaning "feathered tyrant") is a genus of proceratosaurid tyrannosauroid dinosaur which contains a single known species, Yutyrannus huali.