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Lawrence M. Witmer, The Evolution of the Antorbital Cavity of Archosaurs: A Study in Soft-Tissue Reconstruction in the Fossil Record with an Analysis of the Function of Pneumaticity, Memoir (Society of Vertebrate Paleontology), Vol. 3, The Evolution of the Antorbital Cavity of Archosaurs: A Study in Soft-Tissue Reconstruction in the Fossil Record with an Analysis of the Function of Pneumaticity (Apr. 16, 1997), pp. 1-73
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Lawrence M. Witmer (1997) studied this question.
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