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Elaltitan
''Elaltitan'' is an extinct genus of large lithostrotian titanosaur sauropod known from the Late Cretaceous (mid Cenomanian to Turonian stage) of Chubut Province, southern Argentina. It contains a single species, ''Elaltitan lilloi''.
==Discovery==
''Elaltitan'' is known only from a single individual represented by an associated partial postcranial skeleton. The holotype includes both PVL 4628 and MACN-CH 217 comprising three dorsal vertebrae, two caudal vertebrae, left scapula, left humerus, left radius, both ulnae, right pubis, proximal half of right femur, distal part of left tibia, distal two-thirds of left fibula, right astragalus and calcaneum. ''Elaltitan'' is the first titanosaur skeleton to preserve an associated calcaneum. Although all of the material was originally housed in the Colección de Paleontología de Vertebrados de la Fundación Instituto Miguel Lillo in Tucumán, Argentina and accessioned as PVL 4628, the dorsal vertebrae and complete caudal vertebra were subsequently moved to the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” in Buenos Aires, where they were accessioned as MACN-CH 217. The holotype specimen was collected by an expedition of the Fundación Miguel Lillo and the Universidad Nacional de Tucumán, led by José Fernando Bonaparte, from the right (southern) bank of the Senguerr River, in the area between the bend of this river and the Pampa de María Santísima, southeast of the southernmost part of the Sierra de San Bernardo, Chubut Province. It came from the lower member of the Bajo Barreal Formation, dating to the middle Cenomanian to the Turonian stage of the Late Cretaceous period, about 96.5-89.3 million years ago.〔
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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