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Cervical vertebrae of an enigmatic pterosaur from the Crato Formation (Lower Cretaceous, Araripe Basin, NE Brazil)

By
Maria E. C. Leal
Maria E. C. Leal
Centro de Ciências, Departamento de Geologia, Universidade Federal do Ceará, Campus do PICI – BL. 912, CEP. 60455-760, Fortaleza, CE, Brazil
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Rodrigo V. Pêgas
Rodrigo V. Pêgas
Laboratory of Systematics and Taphonomy of Fossil Vertebrates, Departamento de Geologia e Paleontologia, Universidade Federal do Rio de Janeiro, Museu Nacional, Quinta da Boa Vista s/n, São Cristóvão, CEP. 20940-040, Rio de Janeiro, RJ, Brazil
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Niels Bonde
Niels Bonde
Biosystematics Section, Zoological Museum (SNM, Copenhagen University), Universitetsparken 15, DK-2100 Copenhagen Ø, DenmarkFur Museum (Muserum Salling), Nederby 28, DK-7884 Fur, Denmark
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Alexander W. A. Kellner
Alexander W. A. Kellner
Laboratory of Systematics and Taphonomy of Fossil Vertebrates, Departamento de Geologia e Paleontologia, Universidade Federal do Rio de Janeiro, Museu Nacional, Quinta da Boa Vista s/n, São Cristóvão, CEP. 20940-040, Rio de Janeiro, RJ, Brazil
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Published:
January 01, 2018

Abstract:

The Brazilian Crato Formation (Lower Cretaceous, Aptian) is well known for its rich pterosaur fauna. This paper deals with a new find represented by four articulated mid-cervical vertebrae. The vertebrae show a morphology consistent with that seen in the Chaoyangopteridae, especially the relative elongation, low neural spines, lack of pneumatic foramina on the lateral face of the centra and the presence of well-developed postexapophyses. Chaoyangopterids are, so far, represented with confidence only in Chinese deposits; the only record outside the Jehol Group is the Crato Formation form Lacusovagus magnificens, a partial skull whose assignment to the Chaoyangopteridae has been disputed. Given this controversy, we review the phylogenetic position of Lacusovagus, and discuss the nesting of our new specimen among theChaoyangopteridae, providing some comments concerning the composition of the group. We conclude that our new specimen provides further support for the presence of chaoyangopterids in the Early Cretaceous of Brazil.

Supplementary material: Phylogenetic analysis data are available at: https://doi.org/10.6084/m9.figshare.c.3873391

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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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