On the Supposed Presence of Miocene Tayassuidae and Dromomerycinae (Mammalia, Cetartiodactyla) in South America

dc.creatorGasparini, Germán Mariano
dc.creatorParisi Dutra, Rodrigo
dc.creatorPerini, Fernando A.
dc.creatorCroft, Darin A.
dc.creatorCozzuol, Mario Alberto
dc.creatorVelloso Missagia, Rafaela
dc.creatorLucas, Spencer G.
dc.date2021
dc.date2021-09-20T16:25:07Z
dc.date.accessioned2023-07-15T03:12:38Z
dc.date.available2023-07-15T03:12:38Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/125197
dc.identifierissn:0003-0082
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7464848
dc.descriptionThe earliest record of North American mammals in South America is significant for constraining the timing of intercontinental faunal interchange. At present, the oldest securely dated remains of a North American terrestrial mammal in South America pertain to a late Miocene procyonid; a few other North American mammal groups are present in late Miocene and early Pliocene outcrops in South America, but most are not recorded until the late Pliocene or Pleistocene, after the complete emergence of the Panamanian Isthmus. This long-established pattern has recently been called into question by reports of a proboscidean, two tayassuids, and a dromomerycine cervoid in supposed late Miocene deposits of Peruvian Amazon. In this contribution, we analyze the taxonomic identities and stratigraphic provenances of the tayassuid and dromomerycine fossils in detail. We conclude that these specimens are not distinguishable from modern tayassuids (Tayassu pecari and Dicotyles tajacu) and cervids, and that previous taxonomic identifications are based on misinterpretation of characters or inadequate specimens. In addition, there is insufficient evidence to support a late Miocene age for these terrestrial cetartiodactyl fossils; the stratigraphic provenance of the specimens is highly dubious, and the fossils are likely Quaternary in age.
dc.descriptionFacultad de Ciencias Naturales y Museo
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectPaleontología
dc.subjectPaleontology
dc.subjectQuaternary
dc.subjectOutcrop
dc.subjectGeography
dc.subjectMammal
dc.subjectLate miocene
dc.subjectProvenance
dc.subjectTayassu pecari
dc.subjectAmazon rainforest
dc.subjectPleistocene
dc.titleOn the Supposed Presence of Miocene Tayassuidae and Dromomerycinae (Mammalia, Cetartiodactyla) in South America
dc.typeArticulo
dc.typeArticulo


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