|
''Drusilasaura'' is an extinct genus of possible lognkosaurian titanosaur sauropod dinosaur which lived during the late Cretaceous (Cenomanian-Turonian stage) of Santa Cruz Province of southern Patagonia, Argentina. ''Drusilasaura'' is known from the holotype MPM-PV 2097/1 to 2097/19, a partial skeleton including four dorsal vertebrae, a sacral vertebra, six caudal vertebrae, a left scapula, dorsal rib fragments and other fragments. It was found by palaeontologist Marcelo Tejedor searching fossil mammals, in layers of the Upper Member of the Bajo Barreal Formation, on the María Aike Ranch owned by the Ortiz de Zárate family. A team from the ''Laboratorio de Paleontología de Vertebrados'' of the ''Universidad Nacional de la Patagonia San Juan Bosco'' subsequently collected the remains.〔Navarrete, C.; Casal, G. & Martínez, R., 2008, "Nuevos materiales de Titanosauridae (Lognkosauria?) de la Formación Bajo Barreal, Cretácico Superior, Santa Cruz, Argentina". In: ''CONGRESO LATINOAMERICANO DE PALEONTOLOGÍA DE VERTEBRADOS, 3, 2008. Libro de Resúmenes'' p. 176〕 ''Drusilasaura'' was named by César Navarrete, Gabriel Casal and Rubén Martínez in 2011. The type species is ''Drusilasaura deseadensis''. The generic name honours Drusila Ortiz de Zárate, a young female member of the family, also occasioning the choice of the feminine form ''~saura''. The specific name refers to the Río Deseado. ''Drusilasaura'' is a large sauropod. The length of the scapula is 143 centimetres, 30% longer than that of ''Mendozasaurus''.〔 ''Drusilasaura'' was assigned to the Titanosauridae by the describers and considered a possible member of the Lognkosauria. If so, it would be the oldest known lognkosaurian.〔 ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Drusilasaura」の詳細全文を読む スポンサード リンク
|