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Comparative 3D analyses and palaeoecology of giant early amphibians (Temnospondyli: Stereospondyli)
Fortuny Terricabras, Josep (Institut Català de Paleontologia Miquel Crusafont)
Marcé Nogué, Jordi (Universitat Politècnica de Catalunya)
Steyer, J. Sébastien (Centre de Recherches en Paléobiodiversité et Paléoenvironnements. Muséum national d'Histoire naturelle)
De Esteban Trivigno, Soledad (Institut Català de Paleontologia Miquel Crusafont)
Mujal Grané, Eudald (Universitat Autònoma de Barcelona. Departament de Geologia)
Gil, Lluís (Universitat Politècnica de Catalunya)

Date: 2016
Abstract: Macroevolutionary, palaeoecological and biomechanical analyses in deep time offer the possibility to decipher the structural constraints, ecomorphological patterns and evolutionary history of extinct groups. Here, 3D comparative biomechanical analyses of the extinct giant early amphibian group of stereospondyls together with living lissamphibians and crocodiles, shows that: i) stereospondyls had peculiar palaeoecological niches with proper bites and stress patterns very different than those of giant salamanders and crocodiles; ii) their extinction may be correlated with the appearance of neosuchians, which display morphofunctional innovations. Stereospondyls weathered the end-Permian mass extinction, re-radiated, acquired gigantic sizes and dominated (semi) aquatic ecosystems during the Triassic. Because these ecosystems are today occupied by crocodilians, and stereospondyls are extinct amphibians, their palaeobiology is a matter of an intensive debate: stereospondyls were a priori compared with putative living analogous such as giant salamanders and/or crocodilians and our new results try to close this debate.
Note: Número d'acord de subvenció AGAUR/2014/BP-A-00048
Note: Número d'acord de subvenció MINECO/CGL2014-54373-P
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. Creative Commons
Language: Anglès.
Document: article ; recerca ; publishedVersion
Published in: Scientific Reports, Vol. 6, (July 2016) , art. 30387, ISSN 2045-2322

DOI: 10.1038/srep30387
PMID: 27457883


10 p, 1.1 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Research articles
Articles > Published articles

 Record created 2018-07-05, last modified 2019-07-21



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