Air-filled postcranial bones in theropod dinosaurs: physiological implications and the 'reptile'-bird transition.
Pneumatic (air-filled) postcranial bones are unique to birds among extant tetrapods. Unambiguous skeletal correlates of postcranial pneumaticity first appeared in the Late Triassic (approximately 210 million years ago), when they evolved independently in several groups of bird-line archosaurs (ornit...
Main Authors: | Benson, R, Butler, R, Carrano, M, O'Connor, P |
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Format: | Journal article |
Language: | English |
Published: |
2012
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