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North American herbivorous dinosaurs from this time period include the titanosaur sauropod Alamosaurus, the ceratopsians Bravoceratops, Regaliceratops, Triceratops, Leptoceratops, Torosaurus, Nedoceratops, Tatankaceratops (the latter two possible species of Triceratops), and Ojoceratops, the pachycephalosaurs Pachycephalosaurus, Stygimoloch ...
S. armatus is both the first Stegosaurus to be discovered and the type species. [42] Its type specimen is poorly preserved, incomplete, and lacks diagnostic features. [41] It has been considered dubious, with S. stenops as the neotype species for the genus. [41] S. stenops [14] Colorado, Utah and Wyoming, Brushy Basin member [16] [14] [9] [43]
The giant moa (Dinornis) is an extinct genus of birds belonging to the moa family. As with other moa, it was a member of the order Dinornithiformes. It was endemic to New Zealand. Two species of Dinornis are considered valid, the North Island giant moa (Dinornis novaezealandiae) and the South Island giant moa (Dinornis robustus). In addition ...
Scientific name Range Comments Pictures Mexican horse: Equus conversidens: Western North America A small non-caballine species that coexisted in North America with the caballine horse (E. ferus). [40] The most recent remains were dated to 8965-8875 BCE. [4]
Mounted skeletons of Tyrannosaurus (left) and Apatosaurus (right) at the AMNH. Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Extinct order of birds This article is about the extinct New Zealand birds known as moa. For other uses, see Moa (disambiguation). Moa Temporal range: Miocene – Holocene, 17–0.0006 Ma Pre๊ ๊ O S D C P T J K Pg N North Island giant moa skeleton Scientific classification Domain ...
The name was an additional play on words by Leidy since it translates from Greek as Foulke's big lizard. Leidy recognized that the bones were from a dinosaur because of their similarity to those of Iguanodon, discovered in England some decades before but, at the time, the skeleton of Hadrosaurus was one of the most complete dinosaur skeletons ...
Supersaurus (meaning "super lizard") is a genus of diplodocid sauropod dinosaur that lived in North America during the Late Jurassic period. The type species, S. vivianae, was first discovered by Vivian Jones of Delta, Colorado, in the middle Morrison Formation of Colorado in 1972.