A new fossil peccary from the Pleistocene-Holocene boundary of the eastern Yucatán Peninsula, Mexico

• Verfasst von: Stinnesbeck, Sarah [VerfasserIn]
• Verfasst von: Stinnesbeck, Wolfgang [VerfasserIn]
• Titel: A new fossil peccary from the Pleistocene-Holocene boundary of the eastern Yucatán Peninsula, Mexico
• Verf.angabe: Sarah R. Stinnesbeck, Eberhard Frey, Wolfgang Stinnesbeck, Jeronimo Avíles Olguín, Patrick Zell, Alejandro Terrazas Mata, Martha Benavente Sanvicente, Arturo González González, Carmen Rojas Sandoval, Eugenio Acevez Nuñez
• Jahr: 2017
• Jahr des Originals: 2016
• Umfang: 9 S.
• Fussnoten: Available online 18 November 2016 ; Gesehen am 01.09.2020
• Titel Quelle: Enthalten in: Journal of South American earth sciences
• Ort Quelle: Amsterdam [u.a.] : Elsevier Science, 1988
• Jahr Quelle: 2017
• Band/Heft Quelle: 77(2017), Seite 341-349
• ISSN Quelle: 0895-9811
• DOI: doi:10.1016/j.jsames.2016.11.003
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Late Pleistocene/early Holocene
• Sach-SW: Mammalia
• Sach-SW: Southern Mexico
• Sach-SW: Tayassuidae
• Sach-SW: Yucatán Peninsula
• K10plus-PPN: 1572186283

Abstract

Here we describe the left mandibular ramus of a fossil peccary from the submerged karst cave system in the southeastern Mexican state of Quintana Roo. The specimen, which was discovered in the Muknal cave northwest of Tulúm, is a new genus and species of peccary termed Muknalia minima. The taxon likely dates from the latest Pleistocene and differs significantly from all extant peccaries and their Pleistocene relatives by a concave notch at the caudal edge of the mandibular ramus and prominent ventrally directed angular process. These diagnostic osteological differences suggest that the masticatory apparatus differed from all other peccaries, which may hint to an ecological isolation on the late Pleistocene Yucatán Peninsula.