A new toothless pterosaur (Pterodactyloidea) from Southern Brazil with insights into the paleoecology of a Cretaceous desert
Kellner, Alexander W. A. (Universidade Federal do Rio de Janeiro. Departamento de Geologia e Paleontologia (Brasil))
Weinschütz, Luiz C. (Universidade do Contestado)
Holgado, Borja (Institut Català de Paleontologia Miquel Crusafont)
Bantim, Renan A. M. (Universidade Regional do Cariri)
Sayão, Juliana M. (Universidade Federal de Pernambuco)
Universitat Autònoma de Barcelona

Date:	2019
Abstract:	The first pterosaur bone bed from Brazil was reported in 2014 at the outskirts of the town Cruzeiro do Oeste, Paraná State, in the Southern region of the country. Here named 'cemitério dos pterossauros' site, these outcrops were referred to the Goio-Erê Formation (Turonian-Campanian) of the Caiuá Group (Bauru Basin) and revealed the presence of hundreds of isolated or partially articulated elements of the tapejarine pterosaur Caiuajara and fewer amounts of a theropod dinosaur. Here we present a new tapejaromorph flying reptile from this site, Keresdrakon vilsoni gen. et sp. nov. , which shows a unique blunt ridge on the dorsal surface of the posterior end of the dentary. Morphological and osteohistological features indicate that all recovered individuals represent late juveniles or sub-adults. This site shows the first direct evidence of sympatry in Pterosauria. The two distinct flying reptiles coexisted with a theropod dinosaur, providing a rare glimpse of a paleobiological community from a Cretaceous desert.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Animals ; Brazil ; Dinosaurs ; Fossils ; Phylogeny
Published in:	Anais da Academia Brasileira de Ciencias, Vol. 91, Supl. 2 (August 2019) , art. e20190768, ISSN 1678-2690

DOI: 10.1590/0001-3765201920190768
PMID: 31432888

32 p, 5.8 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Research articles
Articles > Published articles