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Deinosuchus (/ ˌ d aɪ n ə ˈ sj uː k ə s /) is an extinct genus of alligatoroid crocodilian, related to modern alligators and caimans, that lived 82 to 73 million years ago (Ma), during the late Cretaceous period.
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.
This is a list of dinosaurs whose remains have been recovered from Appalachia.During the Late Cretaceous period, the Western Interior Seaway divided the continent of North America into two landmasses; one in the west named Laramidia and Appalachia in the east.
Acirsa † Acirsa americana – or unidentified related form † Acirsa clathrata † Acirsa flexicostata Life restoration of the Early Cretaceous theropod dinosaur Acrocanthosaurus † Acrocanthosaurus – or unidentified comparable form † Acteon † Acteon cicatricosus † Acutostrea † Acutostrea plumosa † Aenona † Aenona eufaulensis † Aenona georgiana † Agerostrea † Agerostrea ...
English: A comparison of several size estimates for Deinosuchus, a giant Late Cretaceous crocodilian. The largest credible specimen of modern C. porosus (saltwater crocodile) is also included in the diagram for comparison, as is an average height human. Full citation information:
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The ages of the Aguja Formation and its primary fossil-bearing unit, the Alto Shale, are not well understood. Due to the presence of the ammonite Baculites mclearni, which only occurs from 80.67 - 80.21 Ma, in the underlying Rattlesnake Mountain Sandstone and the Terlingua Creek Sandstone, it is likely that the Upper Shale was younger than 80.2 Ma. [3]
Asiatosuchus is an extinct genus of crocodyloid crocodilians that lived in Eurasia during the Paleogene.Many Paleogene crocodilians from Europe and Asia have been attributed to Asiatosuchus since the genus was named in 1940.