A redescription of Palaeogekko risgoviensis (Squamata, Gekkota) from the Middle Miocene of Germany, with new data on its morphology
Villa, Andrea (Institut Català de Paleontologia Miquel Crusafont)

Data:	2023
Resum:	After its original description, the Middle Miocene gekkotan Palaeogekko risgoviensis remained an enigma for palaeontologists due to a rather poor knowledge of its osteology and relationships. Coming from a single locality in southern Germany, this gecko lived in central Europe during a period when a single gekkotan lineage (i. e. , euleptine sphaerodactylids) is confidently reported to have inhabited the continent. However, it is unclear whether P. risgoviensis may represent a member of this same lineage or a second clade of Gekkota. In order to shed light on this issue, the type material of P. risgoviensis is here redescribed, refigured and extensively compared with extinct and extant geckos from Europe. A phylogenetic analysis is also conducted in order to investigate its relationships. The new observations confirm the validity of the German species as a distinct taxon, and exclude the previously-suggested chimeric status of the type material of this gecko (with the exception of a single dentary included in the type series, which clearly belong to a different lizard). Phylogenetic relationships of Palaeogekko are still unclear, though, with different positions within the gekkotan tree recovered for the taxon. Nevertheless, it is confidently supported as a non-eublepharid gekkonoid, in agreement with hypothesys presented by other scholars.
Ajuts:	Agencia Estatal de Investigación FCI2019-039443-I
Drets:	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.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Europe ; Neogene ; Taxonomy ; Phylogeny ; Geckos ; Cenozoic
Publicat a:	PeerJ, Vol. 11 (January 2023) , art. e14717, ISSN 2167-8359

DOI: 10.7717/peerj.14717
PMID: 36655047

23 p, 28.5 MB

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