Dental remains of 'Parachleuastochoerus' valentini (Suidae: Tetraconodontinae) from the early Late Miocene of Sant Quirze (Vallès-Penedès Basin, NE Iberian Peninsula) : Taxonomic and phylogenetic implications
Alba, David M. (Institut Català de Paleontologia Miquel Crusafont)
Siarabi, Souzanna (Institut Català de Paleontologia Miquel Crusafont)
Arranz, Sara G. (Institut Català de Paleontologia Miquel Crusafont)
McKenzie, Sharrah (Institut Català de Paleontologia Miquel Crusafont)
Casanovas i Vilar, Isaac (Institut Català de Paleontologia Miquel Crusafont)

Date:	2025
Abstract:	The distinctiveness and genus allocation of 'Parachleuastochoerus' valentini (Suidae: Tetraconodontinae), from the Miocene of Europe, has been controversial, being alternatively considered a junior synonym of Conohyus simorrensis. Recently described material from the Vallès-Penedès Basin (NE Iberian Peninsula) supported its distinct species status but did not discount an alternative ascription to Conohyus, largely because the lower male canine remained unknown. Here we describe all the tetraconodontine dentognathic material from the earliest Late Miocene sites of Trinxera del Ferrocarril-Sant Quirze (~11. 6-11. 2 Ma, MN7+8), as well as Can Feliu 2 and Poble Nou de Sant Quirze (≤11. 2 Ma, MN9), comprising 134 specimens. The former locality played an important role in the resurrection of 'Pa. ' valentini but ~70% of the available material remained unpublished. Based on metrical and qualitative comparisons with published material of this species and similarly sized tetraconodontines from Europe, we attribute the whole studied sample to 'Pa. ' valentini. Previous reports of Parachleuastochoerus huenermanni from the site are erroneous (owing to specimen mislabeling). Our results reinforce the distinctiveness of 'Pa. ' valentini, while its lower male canine morphology (first described herein) does not support its transfer to Conohyus. However, a cladistic analysis favors closer phylogenetic relationships with Retroporcus matritensis (a potential junior synonym of C. simorrensis) and even Versoporcus steinheimensis than with Parachleuastochoerus crusafonti (the type species of the genus). Our results thus indicate that Parachleuastochoerus, as currently conceived, is polyphyletic, although pending an in-depth revision of other European tetraconodontines we refrain from providing a new combination for 'Pa. ' valentini.
Grants:	Agencia Estatal de Investigación PID2020-117289GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2022/SGR-00620 Generalitat de Catalunya CLT0009_22_000018 Agència de Gestió d'Ajuts Universitaris i de Recerca 2023/FI-1-00396
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:	Suids ; Dental morphology ; Taxonomy ; Systematics ; Phylogeny ; Evolution ; Miocene ; Spain ; Europe
Published in:	Swiss journal of palaeontology, Vol. 144 (February 2025) , art. 9, ISSN 1664-2384

DOI: 10.1186/s13358-024-00344-3

58 p, 10.2 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
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