A new Iberian pleurosternid (Jurassic-Cretaceous transition, Spain) and first neuroanatomical study of this clade of stem turtles
Pérez-García, Adán (Universidad Nacional de Educación a Distancia (Espanya). Grupo de Biología Evolutiva)
Martín-Jiménez, Marcos (Universidad Nacional de Educación a Distancia (Espanya). Grupo de Biología Evolutiva)
Aurell, Marcos (Universidad de Zaragoza. Grupo Aragosaurus-IUCA)
Canudo, José Ignacio (Universidad de Zaragoza. Grupo Aragosaurus-IUCA)
Castanera, Diego (Institut Català de Paleontologia Miquel Crusafont)

Date:	2022
Abstract:	A partial skeleton of a pleurosternid turtle (Paracryptodira), from the Jurassic-Cretaceous transition at the Spanish locality of Ágreda (Moncayo Region, Soria Province), is presented here. Its partial skull represents the third of this lineage to be recognised in the European record, with the previously known specimens corresponding to British species. The specimen of Pleurosternidae studied here is attributed to a new species, Pleurosternon moncayensis. This lineage of stem turtles is identified as the most abundant and diverse group of freshwater aquatic turtles in Europe for the stages adjacent to the Jurassic-Cretaceous transition. Its presence decreased radically at post-Berriasian levels, when freshwater lineages of Eucryptodira, of Asian origin, are identified as the dominant forms at these aquatic turtle faunas. The confirmation of Pleurosternidae as freshwater inhabitants is made here, through the first neuroanatomical study for this lineage. Thus, the neuroanatomical reconstruction of Pleurosternon moncayensis sp. nov. is the first to be carried out for a freshwater stem turtle, and it allows us to identify convergent adaptations with freshwater members of the crown Testudines.
Grants:	Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-SGR-195 Ministerio de Economía y Competitividad CGL2017-85038-P
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Tithonian-Berriasian ; European record ; Stem Testudines ; Pleurosternon ; New species ; Neuroanatomy
Published in:	Historical biology, Vol. 34, Issue 2 (2022) , p. 298-311, ISSN 1029-2381

DOI: 10.1080/08912963.2021.1910818

Postprint 51 p, 1.8 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)
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Articles > Published articles