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Book Chapter

Pelvic musculature of Vectidraco daisymorrisae and consequences for pterosaur locomotion

By
Rachel A. Frigot
Rachel A. Frigot
Center for Functional Anatomy and Evolution, Johns Hopkins University School of Medicine, 1830 E Monument Street, Baltimore, MD 21202, USA
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Published:
January 01, 2018

Abstract:

The unique morphology of pterosaurs makes them a compelling group to study, but the lack of ready analogues or descendant clades presents problems when inferring their biology and ecology. In this paper, the extant phylogenetic bracket is used to reconstruct the musculature of the pterosaur Vectidraco daisymorrisae and a detailed comparison is made between the musculature of this taxon and other reconstructions in the literature. M. iliofibularis is reconstructed as originating upon the angular process of the posterior iliac process, putting it into a mechanically advantageous position as an abductor. M. flexor tibialis internus is reconstructed as greatly enlarged over the ancestral state, probably in response to the reduction of M. caudofemoralis brevis and the tail. This enlargement is considered to correspond to the increasing role of M. flexor tibialis internus as a hip retractor.

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Contents

Geological Society, London, Special Publications

New Perspectives on Pterosaur Palaeobiology

D.W. E. Hone
D.W. E. Hone
Queen Mary University of London, UK
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M. P. Witton
M. P. Witton
University of Portsmouth, UK
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D. M. Martill
D. M. Martill
University of Portsmouth, UK
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The Geological Society of London
Volume
455
ISBN electronic:
9781786203366
Publication date:
January 01, 2018

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