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Dromaeosaurus (/ ˌ d r oʊ m i ə ˈ s ɔːr ə s,-m i. oʊ-/; [3] lit. ' running lizard ' ) is a genus of dromaeosaurid theropod dinosaur that lived during the Late Cretaceous period (middle late Campanian and Maastrichtian ), sometime between 80 and 69 million years ago, in Alberta , Canada and the western United States.
Matthew and Brown described the new genus and species Dromaeosaurus albertensis and named the Dromaeosauridae. [6] 1924. Henry Fairfield Osborn described the new genus and species Velociraptor mongoliensis. [8] 1926. Matthew and Brown first observed that the braincase of dromaeosaurids were large for reptiles of their body size. [9]
Teeth previously referred to various Campanian dromaeosaurids Saurornitholestes and Dromaeosaurus, frequently found throughout the formation, probably belong to this one species. Evans et al. conclude that there is little evidence for the former two taxa being present in the Hell Creek-Lance assemblages.
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. Family of theropod dinosaurs Dromaeosaurids Temporal range: Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N A collection of dromaeosaurid fossil skeletons. Clockwise from upper left: Deinonychus antirrhopus (a heavily built eudromaeosaur), Buitreraptor gonzalezorum (a long-snouted unenlagiine ...
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This is an accepted version of this page This is the latest accepted revision, reviewed on 20 February 2025. Extinct clade of dinosaurs Eudromaeosaurs Temporal range: Early Cretaceous – Late Cretaceous, 143–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N Possible Kimmeridgian record Eudromaeosauria diversity, featuring from top left to lower right: Utahraptor, Deinonychus, Velociraptor and ...
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Zhenyuanlong compared in size to human. Zhenyuanlong suni was a mid-sized dromaeosaurid comparable in length to the similar Tianyuraptor.The fossil skeleton is nearly complete but lacks the last half of the tail, giving the specimen a preserved length of 122.6 centimetres (4.02 ft).