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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.
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 ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 25 January 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 ...
List of fossil species in the La Brea Tar Pits, California, United States; List of fossil species in the London Clay, England; List of White Sea biota species by ...
This list of informally named dinosaurs is a listing of dinosaurs (excluding Aves; birds and their extinct relatives) that have never been given formally published scientific names. This list only includes names that were not properly published ("unavailable names") and have not since been published under a valid name (see list of dinosaur ...
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]
†Dinornis. North Island giant moa, Dinornis novaezealandiae (North Island, New Zealand) South Island giant moa, Dinornis robustus (South Island, New Zealand) †Megalapterygidae – upland moa †Megalapteryx. Upland moa, Megalapteryx didinus (South Island, New Zealand) – may have survived into historic times (syn. Megalapteryx benhami)
Alcovasaurus longispinus: Although originally named as a species of Stegosaurus, it may actually be a species of the otherwise European Miragaia. However, a later study has considered Miragaia a junior synonym of Dacentrurus, making Alcovasaurus a potentially distinct genus. Antrodemus valens: May represent the same animal as Allosaurus.