A new Iberian pleurosternid (Jurassic-Cretaceous transition, Spain) and first neuroanatomical study of this clade of stem turtles

Pérez-García, A. ; Martín-Jiménez, M. ; Aurell, M. (Universidad de Zaragoza) ; Canudo, J.I. (Universidad de Zaragoza) ; Castanera, D.

Resumen: 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. © 2021 Informa UK Limited, trading as Taylor & Francis Group.

Idioma: Inglés

DOI: 10.1080/08912963.2021.1910818

Año: 2022

Publicado en: Historical Biology 34, 2 (2022), 298-311
ISSN: 0891-2963

Factor impacto JCR: 1.4 (2022)

Categ. JCR: PALEONTOLOGY rank: 30 / 54 = 0.556 (2022) - Q3 - T2

Factor impacto CITESCORE: 3.5 - Agricultural and Biological Sciences (Q2)

Factor impacto SCIMAGO: 0.551 - Agricultural and Biological Sciences (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/CGL2017-85038-P

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Paleontología (Dpto. Ciencias de la Tierra)
Área (Departamento): Área Estratigrafía (Dpto. Ciencias de la Tierra)