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[4] [5] Fossil feathers from the dinosaur Sinosauropteryx contain traces of beta-proteins (formerly called beta-keratins), confirming that early feathers had a composition similar to that of feathers in modern birds. [6] Crocodilians also possess beta keratin similar to those of birds, which suggests that they evolved from common ancestral ...
The fossils show that the dinosaurs had a diversity of tufted hair-like "proto-feathers," which would have been used for insulation. The fossils also showed body and wing feathers that would have ...
While Sinosauropteryx had feather-like structures, it was not very closely related to the previous "first bird" Archaeopteryx. [2] There are many dinosaur clades that were more closely related to Archaeopteryx than Sinosauropteryx was, including the deinonychosaurians, the oviraptorosaurians, and the therizinosauroids. [8]
Deinocheirus (/ ˌ d aɪ n oʊ ˈ k aɪ r ə s / DY-no-KY-rəs) is a genus of large ornithomimosaur that lived during the Late Cretaceous around 70 million years ago. In 1965, a pair of large arms, shoulder girdles, and a few other bones of a new dinosaur were first discovered in the Nemegt Formation of Mongolia.
"Regarding discoveries about dinosaurs in recent decades, the most important one to my mind is the discovery that at least meat-eating dinosaurs, theropods, had feathers rather than scales and ...
Norell et al. (2002) described BPM 1 3-13 as the first dinosaur known to have flight feathers on its legs as well as on its arms. [19] Czerkas (2002) mistakenly described the fossil as having no long feathers on its legs, but only on its hands and arms, as he illustrated on the cover of his book Feathered Dinosaurs and the Origin of Flight. [11]
University of Utah Paleontologist Dr. Mark Loewen says the Velociraptor actually had feathers, just like a bird. "One of interesting things people don't really realize is birds are dinosaurs.
Fossil of Sinornithosaurus millenii, the first evidence of feathers in dromaeosaurids Cast of a Caudipteryx fossil with feather impressions and stomach content Fossil cast of a Sinornithosaurus millenii Jinfengopteryx elegans fossil. Many non-avian dinosaurs were feathered. Direct evidence of feathers exists for the following species, listed in ...