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Mounted skeletons of Tyrannosaurus (left) and Apatosaurus (right) at the AMNH. Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
[140] [150] [227] [228] Often set before and after the events of the films, these globe-spanning tales depict Jones' first marriage, and his adventures to discover the Spear of Destiny, Merlin, an Infernal Machine in the Tower of Babel, the Covenant of Buddha, [229] the staff of Moses, [230] the Philosopher's Stone, dinosaurs, a Unicorn horn ...
Dinosaurs are unique in showing a perforate or open acetabulum, where the full extent of the socket is a hole without infilling bone. [1] acromion The acromion is a bony ridge on the lower part of the scapula that functions in providing an attachment for the clavicle.