A new species of Panochthus Burmeister (Xenarthra, Cingulata, Glyptodontidae) from the eastern cordillera, Bolivia

ZURITA A. E.; ZAMORANO M.; SCILLATO-YANÉ GUSTAVO J.; FIDEL S.; IRIONDO M.; GILLETE D.

Historical Biology

Taylor & Francis

Año: 2017

Panochthus and Glyptodon are the Pleistocene Glyptodontidae having the greatest range of latitudinaldistribution and elevation in South America. The most recent revisions of Panochthus recognized itshigh taxonomic diversification mainly distributed in the Chaco-Pampean region of Argentina, Uruguay,southern Bolivia and southern and north-eastern Brazil, while the Andean records are poorly known. Thiscontribution aims: (a) to describe a new species of Panochthus from the Pleistocene of the surroundingsof Potosi (Bolivia), which represents one of the highest known elevation records for fossil Xenarthra; (b) tocarry out a phylogenetic analysis in order to test its location in Panochthus and relationship to some alliedgenera; (c) to discuss some palaeobiogeographical and morphological implications. The results show that,in agreement with previous studies, Panochthus is a natural group, being Propanochthus the sister taxa.This conclusion agrees, at least in part, with the original interpretation of Burmeister, who recognized Pr.bullifer as belonging to Panochthus. The genera Nopachtus and Phlyctaenopyga are more closely related tosome ?Plohophorini? than to the clade Propanochthus + Panochthus. Within Panochthus, this new speciesoccupies a relatively basal position as a sister taxon of the clade composed of P. tuberculatus, P. intermedius,and P. greslebini