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The family Hadrosauridae was first used by Edward Drinker Cope in 1869, then containing only Hadrosaurus. [17] Since its creation, a major division has been recognized in the group between the hollow-crested subfamily Lambeosaurinae and the subfamily Saurolophinae, historically known as Hadrosaurinae. Both of these have been robustly supported ...
Hadrosauroidea is a clade or superfamily of ornithischian dinosaurs that includes the "duck-billed" dinosaurs, or Hadrosauridae, and all dinosaurs more closely related to them than to Iguanodon. Their remains have been recovered in Asia, Europe, Africa and the Americas.
In their study, they analyzed the relationships of the Kritosaurini and Hadrosauridae as a whole. [9] In a study the following year, Alarcón-Muñoz et al. implemented an updated version of the phylogenetic matrix of Rozadilla et al , proposing the name Austrokritosauria for the clade of entirely South American saurolophines closely related to ...
Hadrosaurus (/ ˌ h æ d r ə ˈ s ɔːr ə s /; lit. ' bulky lizard ') is a genus of hadrosaurid ornithopod dinosaurs that lived in North America during the Late Cretaceous Period in what is now the Woodbury Formation in New Jersey about 83.6 to 77.9 Ma.
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Photo from the excavation of S. osborni in 1911 Barnum Brown recovered the first described remains of Saurolophus in 1911, including a nearly complete skeleton ( AMNH 5220 ). Now on display in the American Museum of Natural History, this skeleton was the first nearly complete dinosaur skeleton from Canada.
Image credits: awkwardfamilyphotos But awkwardness is still a theme in many family photos, even if there aren't lingering tensions.According to Dr. McAndrew, this is likely because of the ...
Microhadrosaurus (meaning "small sturdy lizard" in Greek) is a genus of hadrosaurid dinosaur from the Campanian or Maastrichtian-age Upper Cretaceous Yuanpu Formation (also known as the Nanxiong Formation) of Guangdong, China.