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- Dinosaur - Wikipedia
Dinosaurs can therefore be divided into avian dinosaurs —birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds Dinosaurs are varied from taxonomic, morphological and ecological standpoints
- List of dinosaur genera - Wikipedia
This list of dinosaurs is a comprehensive listing of all genera that have ever been considered to be non- avialan dinosaurs, but also includes some dinosaurs of disputed status as non-avian, as well as purely vernacular terms
- Dinosaur classification - Wikipedia
Though extinct dinosaurs are often described as "non-avian" to distinguish them from birds, many groups of theropods have specifically been created to unite extinct taxa with modern birds and the boundary between dinosaurs and birds is arbitrary
- Tyrannosaurus - Wikipedia
Like many bipedal dinosaurs, T rex was historically depicted as a 'living tripod', with the body at 45 degrees or less from the vertical and the tail dragging along the ground, similar to a kangaroo
- Dinosaur | Definition, Types, History, Names, Facts . . .
Dinosaur, the common name given to a group of reptiles, often very large, that first appeared roughly 245 million years ago and thrived worldwide for nearly 180 million years
- Dinosaur - Simple English Wikipedia, the free encyclopedia
Dinosaurs evolved in the Upper Triassic, about 230 million years ago (mya) [3] The earliest date of a fossil is that of Eoraptor and Herrerasaurus from Argentina, and Saturnalia from Brazil, 237 to 228 mya [4] By the early Jurassic they were the top land vertebrates, and dominated most environments on land
- The Dinosaurs | An Encyclopedia of Dinosaurs
Learn about different types of dinosaurs, their history, discoveries, size, diets, contemporaries, and much more
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