Search results
Results from the WOW.Com Content Network
The following outline is provided as an overview of and topical guide to dinosaurs: . Dinosaurs – diverse group of animals of the clade and superorder Dinosauria.They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period (about in 1963) until the end of the Cretaceous (2000), when the Cretaceous–Paleogene extinction event led to the extinction ...
In dinosaurs, the anatomy of the braincase is conservative, but for this reason can be used to infer relationships of a group when other skeletal features underwent changes so profound that their origins can no longer be traced. The braincase may also allow for reconstructing the brain and inner ear, with inferences on senses and intelligence. [20]
Explanation: MWAK argued the diagram originally uploaded by Zureks (based on a Polish encyclopaedia) contains outdated views and also plain mistakes. We think this version is better in line with current cladistic views on Dinosaur evolution.. The original can be viewed here: Evolution of dinosaurs by Zureks.svg: . Modifications made by Woudloper.
For additional high quality dinosaur images, see the Dinosaur Image Review Tyrannosaurus rex skeleton at the Carnegie Museum of Natural History, Pittsburgh. Photo credit: User:ScottRobertAnselmo
The uncinate processes are the small white spurs about halfway along the ribs. The rest of this diagram shows the air sacs and other parts of a bird's respiratory system:1 cervical air sac, 2 clavicular air sac, 3 cranial thoracal air sac, 4 caudal thoracal air sac, 5 abdominal air sac (5' diverticulus into pelvic girdle), 6 lung, 7 trachea
Skeletal diagram showing known remains of the holotype and a referred specimen. The first fossil specimen of the dinosaur later named Sinosauropteryx prima was uncovered in August 1996 by Li Yumin. Yumin was a farmer and part-time fossil hunter who often prospected around Liaoning Province to acquire fossils to sell to individuals and museums.
Approved dinosaur scale diagrams (2 F) Media in category "Approved dinosaur images" The following 4 files are in this category, out of 4 total.
The mummy in bottom view, with outline drawing. AMNH 5060 is considered one of the best preserved dinosaur fossils ever discovered. [11] The scientific value of the mummy lies in its exceptionally high degree of preservation, the articulation of the bones in their original anatomical position, and the extensive skin impressions enveloping the specimen.