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Eodromaeus
''Eodromaeus'' (meaning "dawn runner") is an extinct genus of basal theropod dinosaur known from the Late Triassic period of Argentina. It has been cited by Sereno as resembling a supposed common ancestor to all dinosaurs, the "Eve" of the dinosaurs.〔Bowdler N, ("'Dawn runner casts light on birth of the dinosaurs" ), ''www.bbc.co.uk'', 13-1-2011.〕
==Discovery==
Fossils from ''Eodromaeus'' were first discovered in 1996 by Argentinean paleontologist Ricardo N. Martinez and Earthwatch volunteer Jim Murphy, and it was first believed that the fossils were a new species of ''Eoraptor''. However, as the researchers started to take a closer look at the fossils, they found that it had many skeletal features which were absent in ''Eoraptor'',〔Choi T.Q., ("Dinosaur Graveyard Reveals Oldest ''T. Rex'' Relative: Dawn Runner" ), ''www.FoxNews.com'', 13-01-2011.〕 and they understood that it came from a new genus.
''Eodromaeus'' is known from the holotype PVSJ 560, a nearly complete articulated skeleton recovered from the Valle de la Luna Member of the top of the Ischigualasto Formation, and the referred materials PVSJ 534, PVSJ 561, PVSJ 562 and PVSJ 877 from Valle de la Luna, La Peña and Cancha de Bochas Members of Ischigualasto, dating to the early Carnian faunal stage of the early Late Triassic, about 232–229 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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