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Morrosaurus
''Morrosaurus'' is an extinct genus of herbivorous ornithischian dinosaur member of the Euornithopoda, that lived in the late Cretaceous in the Antarctica. The only known species is the type ''Morrosaurus antarcticus''.
〔(Sebastián Rozadilla, Federico L. Agnolin, Fernando E. Novas, Alexis M. Aranciaga Rolando, Matías J. Motta, Juan M. Lirio & Marcelo P. Isasi, 2016, "A new ornithopod (Dinosauria, Ornithischia) from the Upper Cretaceous of Antarctica and its palaeobiogeographical implications", ''Cretaceous Research'' 57: 311–324 )〕
== Discovery ==
In 2002 the Argentine paleontologist Fernando Novas reported the discovery of a partial skeleton of an euornithopod in Antarctica.〔Novas, F.E., A.V. Cambiaso, J. Lirio, & H. Núñez, 2002, "Paleobiogeografía de los dinosaurios cretácicos polares de Gondwana", ''Ameghiniana'' (Resúmenes) 39(4): 15R〕 In 2015 these remains were the basis for naming the type species ''Morrosaurus antarcticus'', named and described by Sebastian Rozadilla, Federico Lisandro Agnolin, Emilio Fernando Novas, Alexis Rolando Aranciaga Mauro, Matthew J. Motta, Juan Manuel Lirio Marcelo and Pablo Isasi. The genus name refers to the site of El Morro on James Ross Island, where the remains of the species were found. The species name refers to Antarctica. His name was mentioned in 2015 in the electronic version of the publication ''Cretaceous Research''.〔
The holotype specimen MACN Pv 197, was found in a layer of the Snow Hill Island Formation (Cape Lambe, previously assigned to the Lopez de Bertodano Formation), dating to the Maastrichtian epoch. The remains consists in a right hind leg, including the top of the femur, the lower end of the femur, the upper part of the tibia, the underside of the tibia, the upper half of the foot, the bottom of the midfoot and the top of the first joint of the third toe.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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