A New Thaumastocyoninae (Amphicyonidae, Carnivora) from the Early Miocene of Tuchořice, the Czech Republic
Morales, Jorge (Museo Nacional de Ciencias Naturales (Madrid, Espanya). Departamento de Palaeobiología)
Fejfar, Oldrich (National Museum. Department of Palaeontology (Czech Republic))
Heizmann, Elmar (Staatliches Museum für Naturkunde Stuttgart (Germany))
Wagner, Jan (National Museum. Department of Palaeontology (Czech Republic))
Valenciano Vaquero, Alberto (University of Cape Town. Department of Biological Sciences (South Africa))
Abella, Juan (Institut Català de Paleontologia Miquel Crusafont)

Date:	2019
Abstract:	New Amphicyonidae fossil remains from the early Miocene site of Tuchořice (the Czech Republic) confirm the presence of a new Thaumastocyoninae taxon: Peignecyon felinoides n. gen. et n. sp. It is characterized by a peculiar combination of plesiomorphic and derived morphological traits. The new genus can be defined by a long and sharp mandible diastema, loss of mesial premolars (p2-p3), p4 with an inclined distally high main cuspid, moderate sectorial carnassial teeth, m1 with relict metaconid, and talonid and trigonid of similar width, and reduced M2 and m2. In the phylogenetic analysis the Thaumastocyoninae form a monophyletic group characterized by the start of the m2/M2 reduction, still moderate in Crassidia intermedia (von Meyer, 1849), but remarkable in the other species of the clade. Peignecyon felinoides already shows the advanced features defining the Thaumastocyoninae, and constitutes the sister group of the most specialized genera Tomocyon Viret, 1929b and Thaumastocyon Sthelin et Helbing, 1925. Consequently, it can be considered an excellent link between this group and the more primitive members of the tribe Ysengrini (Ysengrinia Ginsburg, 1966 and Crassidia Heizmannn et Kordikova, 2000). Peignecyon felinoides shows that the trend towards hypercarnivory had already emerged in the European early Miocene fauna, thus helping to understand the complex evolution of the Amphicyonidae during the Miocene.
Grants:	Ministerio de Economía y Competitividad CGL2015-68333-P Ministerio de Economía y Competitividad CGL2016-76431-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-BP-00223 European Commission 226506
Note:	Altres ajuts: CERCA Programme/Generalitat de Catalunya
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Thaumastocyoninae ; Amphicyonidae ; Systematics ; Miocene ; Europe
Published in:	Fossil Imprint, Vol. 75, Issue 3-4 (December 2019) , p. 397-411, ISSN 2533-4069

DOI: 10.2478/if-2019-0025

15 p, 35.6 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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