Journal
COMPTES RENDUS PALEVOL
Volume 1, Issue 2, Pages 103-109Publisher
EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/S1631-0683(02)00019-2
Keywords
Thailand; Upper Triassic; Dinosauria; Sauropoda; giantism
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Newly discovered sauropod material from the Upper Triassic of northeastern Thailand reveals that some of the earliest sauropods had already reached a very large size. A 1 m long humerus is within the size range of large Jurassic sauropods such as Camarasaurus and suggests an animal reaching a length of 12 to 15 m. It took sauropodomorph dinosaurs some 20 million years to produce giant forms, a rapid size increase when compared with that observed in the evolution of other dinosaurs, such as ornithischians. (C) 2002 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
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