A new goniopholidid crocodylomorph from the Late Jurassic of Portugal
López-Rojas, Víctor ; Mateus, Simão ; Marinheiro, João ; Mateus, Octávio ; Puértolas-Pascual, Eduardo (Universidad de Zaragoza)
Resumen: Plenty of goniopholidid species from the Mesozoic have been found in the Iberian Peninsula. A previous goniopholidid taxon, Goniopholis baryglyphaeus Schwarz, 2002, from the Late Jurassic of the Guimarota coal mine (Leiria, central Portugal) was described. This taxon corresponds to a partial skull and some postcranial material, and it marked the oldest and first ever record of goniopholidid and Goniopholis species described for the Iberian Peninsula. Here we present a well-preserved, almost complete, skull of a new species, Ophiussasuchus paimogonectes gen. et sp. nov. from Upper Jurassic deposits of Praia de Paimogo (near Lourinhã, central west Portugal). The specimen corresponds to a mesorostrine, platyrostral skull of a medium-sized goniopholidid coming from the upper Kimmeridgian within the Lourinhã Formation. Phylogenetically, the new species is recovered as the sister taxon of the Early Cretaceous European clade made by Hulkepholis and Anteophthalmosuchus. Although its position is well-resolved, this new taxon displays intermediate morphological traits, sharing characteristics with Jurassic Asian and American basal goniopholidids (e.g., presence but lesser development of the secondary choana with the nasopharyngeal duct partially open), as well as more derived characters shared with Cretaceous European taxa such as Hulkepholis (e.g., the shape of the supratemporal fenestra and the palatines). As a result, Ophiussasuchus paimogonectes gen. et sp. nov. exhibits characteristics suggesting a reversion to primitive goniopholidid conditions or intermediate states between the goniopholidid taxa of North America and Europe. These findings support the shared Late Jurassic fauna between the Morrison and Lourinhã Formations, while also having high endemism of taxa.
Idioma: Inglés
DOI: 10.26879/1316
Año: 2024
Publicado en: PALAEONTOLOGIA ELECTRONICA 27, 1 (2024), a5 [33 pp.]
ISSN: 1935-3952
Factor impacto JCR: 1.5 (2024)
Categ. JCR: PALEONTOLOGY rank: 27 / 56 = 0.482 (2024) - Q2 - T2
Factor impacto SCIMAGO: 0.617 - Paleontology (Q2) - Oceanography (Q2)
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2021-122612OB-I00
Tipo y forma: Article (Published version)
Área (Departamento): Área Paleontología (Dpto. Ciencias de la Tierra)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
Exportado de SIDERAL (2025-09-22-14:30:12)
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Idioma: Inglés
DOI: 10.26879/1316
Año: 2024
Publicado en: PALAEONTOLOGIA ELECTRONICA 27, 1 (2024), a5 [33 pp.]
ISSN: 1935-3952
Factor impacto JCR: 1.5 (2024)
Categ. JCR: PALEONTOLOGY rank: 27 / 56 = 0.482 (2024) - Q2 - T2
Factor impacto SCIMAGO: 0.617 - Paleontology (Q2) - Oceanography (Q2)
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2021-122612OB-I00
Tipo y forma: Article (Published version)
Área (Departamento): Área Paleontología (Dpto. Ciencias de la Tierra)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. Exportado de SIDERAL (2025-09-22-14:30:12)
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Record created 2024-03-01, last modified 2025-09-23