DSpace Repository

Late middle Miocene caviomorph rodents from Tarapoto, Peruvian Amazonia

Show simple item record

dc.contributor.author Boivin, M.
dc.contributor.author Marivaux, L.
dc.contributor.author Aguirre-Diaz, W.
dc.contributor.author Benites-Palomino, A.
dc.contributor.author Billet, G.
dc.contributor.author Pujos, F.
dc.contributor.author Salas-Gismondi, R.
dc.contributor.author Stutz, N.S.
dc.contributor.author Tejada-Lara, J.V.
dc.contributor.author Varas-Malca, R.M.
dc.contributor.author Walton, A.H.
dc.contributor.author Antoine, P.-O.
dc.date.accessioned 2021-12-12T20:24:56Z
dc.date.available 2021-12-12T20:24:56Z
dc.date.issued 2021
dc.identifier.uri https://hdl.handle.net/20.500.12866/10252
dc.description.abstract Miocene deposits of South America have yielded several species-rich assemblages of caviomorph rodents. They are mostly situated at high and mid- latitudes of the continent, except for the exceptional Honda Group of La Venta, Colombia, the faunal composition of which allowed to describe the late middle Miocene Laventan South American Land Mammal Age (SALMA). In this paper, we describe a new caviomorph assemblage from TAR-31 locality, recently discovered near Tarapoto in Peruvian Amazonia (San Martín Department). Based on mammalian biostratigraphy, this single-phased locality is unambiguously considered to fall within the Laventan SALMA. TAR-31 yielded rodent species found in La Venta, such as the octodontoid Ricardomys longidens Walton, 1990 (nom. nud.), the chinchilloids Microscleromys paradoxalis Walton, 1990 (nom. nud.) and M. cribriphilus Walton, 1990 (nom. nud.), or closely-related taxa. Given these strong taxonomic affinities, we further seize the opportunity to review the rodent dental material from La Venta described in the Ph.D. volume of Walton in 1990 but referred to as nomina nuda. Here we validate the recognition of these former taxa and provide their formal description. TAR-31 documents nine distinct rodent species documenting the four extant superfamilies of Caviomorpha, including a new erethizontoid: Nuyuyomys chinqaska gen. et sp. nov. These fossils document the most diverse caviomorph fauna for the middle Miocene interval of Peruvian Amazonia to date. This rodent discovery from Peru extends the geographical ranges of Ricardomys longidens, Microscleromys paradoxalis, and M. cribriphilus, 1,100 km to the south. Only one postcranial element of rodent was unearthed in TAR-31 (astragalus). This tiny tarsal bone most likely documents one of the two species of Microscleromys and its morphology indicates terrestrial generalist adaptations for this minute chinchilloid en_US
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS ONE
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject animal tissue en_US
dc.subject Article en_US
dc.subject biostratigraphy en_US
dc.subject caviomorph rodent en_US
dc.subject fossil animal en_US
dc.subject geographic distribution en_US
dc.subject mandible en_US
dc.subject maxilla en_US
dc.subject Microscleromys cribriphilus en_US
dc.subject Microscleromys paradoxalis en_US
dc.subject Middle Miocene en_US
dc.subject morphology en_US
dc.subject nonhuman en_US
dc.subject Nuyuyomys chinqaska en_US
dc.subject paleontology en_US
dc.subject Peru en_US
dc.subject Ricardomys longidens en_US
dc.subject rodent en_US
dc.subject species diversity en_US
dc.subject tarsal bone en_US
dc.subject taxonomy en_US
dc.title Late middle Miocene caviomorph rodents from Tarapoto, Peruvian Amazonia en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pone.0258455
dc.relation.issn 1932-6203


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

info:eu-repo/semantics/restrictedAccess Except where otherwise noted, this item's license is described as info:eu-repo/semantics/restrictedAccess

Search DSpace


Browse

My Account

Statistics