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Late middle Miocene caviomorph rodents from Tarapoto, Peruvian Amazonia

Boivin, Myriam and Marivaux, Laurent and Aguirre-Diaz, Walter and Benites-Palomino, Aldo and Billet, Guillaume and Pujos, François and Salas-Gismondi, Rodolfo and Stutz, Narla S. and Tejada-Lara, Julia V. and Varas-Malca, Rafael M. and Walton, Anne H. and Antoine, Pierre-Olivier (2021) Late middle Miocene caviomorph rodents from Tarapoto, Peruvian Amazonia. PLoS ONE, 16 (11). Art. No. e0258455. ISSN 1932-6203. PMCID PMC8565788. doi:10.1371/journal.pone.0258455. https://resolver.caltech.edu/CaltechAUTHORS:20220810-751682000

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1371/journal.pone.0258455DOIArticle
http://www.ncbi.nlm.nih.gov/pmc/articles/pmc8565788/PubMed CentralArticle
https://doi.org/10.1371/journal.pone.0258455.s001DOIS1 File. Exploring the potential species number of Microscleromys from TAR-31 and La Venta
https://doi.org/10.1371/journal.pone.0258455.s002DOIS2 File. Data and corresponding script(s) for each dental locus used for statistical analyses
https://doi.org/10.1371/journal.pone.0258455.s003DOIS1 Table. Dental measurements (in millimeters) of rodent material from TAR-31 (Tarapoto, Peru; late middle Miocene) and La Venta (Colombia; late middle Miocene)
https://doi.org/10.1371/journal.pone.0258455.s004DOIS2 Table. Extinct and extant caviomorph taxa used for dental comparisons in this study
ORCID:
AuthorORCID
Boivin, Myriam0000-0002-5240-9460
Marivaux, Laurent0000-0002-2882-0874
Benites-Palomino, Aldo0000-0002-5409-6322
Pujos, François0000-0002-6267-3927
Salas-Gismondi, Rodolfo0000-0001-9990-8841
Stutz, Narla S.0000-0002-1937-3902
Tejada-Lara, Julia V.0000-0003-2307-6764
Varas-Malca, Rafael M.0000-0002-4435-8229
Antoine, Pierre-Olivier0000-0001-9122-1818
Additional Information:© 2021 Boivin et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Received: July 19, 2021; Accepted: September 24, 2021; Published: November 3, 2021. Many thanks to M. Roddaz (GET, Toulouse, France), M.A. Custódio and R. Ventura (GEOCRON/IG, Brasília, Brazil) and whoever helped us in the field and in the lab. We are particularly grateful to our drivers Giancarlo and Manuel, for their long standing help during the yearly field seasons. We warmly thank M.R. Ruiz-Monachesi (IBIGEO, Salta, Argentina) for discussing on statistics, his relevant suggestions and aid with respect to the Bayesian models and the osteological preparation of the Galea. We are much indebted to M.C. Madozzo-Jaén (Lillo, San Miguel de Tucumán, Argentina) and to M.E. Pérez (MEF, Trelew, Argentina) for discussing on phylogeny and homology of dental structures in cavioids. Many thanks to A. Álvarez and M.D. Ercoli (INECOA, San Salvador de Jujuy, Argentina) for providing us photos of collection material for dental comparisons. Christine Argot (MNHN, Paris, France), M. Reguero (MLP, La Plata, Argentina), L. Chornogubsky and A.G. Kramarz (MACN, Buenos Aires, Argentina), and M. Taglioretti (MMP, Mar del Plata, Argentina) kindly granted access to the collections under their care. We are much indebted to M. Gómez Pérez, the team of Museo Geológico Nacional—Servicio Geológico Colombiano and J.D. Carrillo (MNHN) for the correspondance between the field numbers and the collection numbers for the material from La Venta. We warmly thank B. Rondeau and L. Lena (LPG, Nantes, France) for access to a Keyence Digital Microscope facility; C. Cazeveille (Institut des Neurosciences de Montpellier [INM], France) for access to a electron microscope scanning facility; and A.-L. Charruault and R. Lebrun (ISEM, Montpellier, France) for μCT scan acquisitions and treatments. We thank the MRI and the LabEx CeMEB for access to the electron microscope and μCT scanning facilities (ISEM, Montpellier). We are indebted to A.-L. Charruault (ISEM, Montpellier, France) for the cast preparation of the rodent material from TAR-31. We gratefully thank the E. Beucler and O. Bourgeois (LPG, Nantes, France) in order to have allowed MB realizing a journey in Montpellier. This is ISEM publication 2021-225-Sud. LM and POA received funding from The Leakey Foundation and the LabEx CEBA (ANR-10-LABX-0025-01). POA received funding from the National Geographic Society and from the French ‘Agence Nationale de la Recherche’ (ANR) in the framework of the GAARAnti program (ANR-17-CE31-0009). LM received funding from the CoopIntEER CNRS-CONICET (n° 252540). POA and FP received funding from the ECOS-SUD/FONCyT (n° A-14U01) international collaboration programs. MB received funding from the ‘Laboratoire de Planétologie et de Géodynamique de Nantes‘. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Data Availability: All relevant data are within the manuscript and its Supporting Information files (S1 Table and S2 File). The fossil material is permanently stored in the Vertebrate Paleontological collection of the “Museo de Historia Natural, Universidad Nacional Mayor de San Marcos” (MUSM), Lima, Peru. The authors have declared that no competing interests exist.
Funders:
Funding AgencyGrant Number
Leakey FoundationUNSPECIFIED
Agence Nationale de la Recherche (ANR)ANR-10-LABX-0025-01
National Geographic SocietyUNSPECIFIED
Agence Nationale de la Recherche (ANR)ANR-17-CE31-0009
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)252540
Fondo para la Investigación Científica y Tecnológica (FONCYT)A-14U01
Laboratoire de Planétologie et de Géodynamique de NantesUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
ISEM2021-225-Sud
Issue or Number:11
PubMed Central ID:PMC8565788
DOI:10.1371/journal.pone.0258455
Record Number:CaltechAUTHORS:20220810-751682000
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220810-751682000
Official Citation:Boivin M, Marivaux L, Aguirre-Diaz W, Benites-Palomino A, Billet G, Pujos F, et al. (2021) Late middle Miocene caviomorph rodents from Tarapoto, Peruvian Amazonia. PLoS ONE 16(11): e0258455. https://doi.org/10.1371/journal.pone.0258455
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:116211
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:15 Aug 2022 14:50
Last Modified:15 Aug 2022 14:50

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