Dental remains of cebid platyrrhines from the earliest late Miocene of Western Amazonia, Peru: Macroevolutionary implications on the extant capuchin and marmoset lineages
Dados Bibliográficos
| AUTOR(ES) | |
|---|---|
| AFILIAÇÃO(ÕES) | Laboratoire de Paléontologie, Institut des Sciences de l'Évolution de Montpellier (ISE‐M, UMR 5554, CNRS/UM/IRD/EPHE), c.c. 064, Université de Montpellier F‐34095 Montpellier, Cedex 05 France, Departamento de Paleontología de Vertebrados Museo de Historia Natural—Universidad Nacional Mayor San Marcos (MUSM) Lima 11 Peru, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT–CONICET–Mendoza Mendoza 5500 Argentina |
| ANO | 2016 |
| TIPO | Artigo |
| PERIÓDICO | American Journal of Physical Anthropology |
| ISSN | 0002-9483 |
| E-ISSN | 1096-8644 |
| EDITORA | Berghahn Journals (United Kingdom) |
| DOI | 10.1002/ajpa.23052 |
| CITAÇÕES | 3 |
| ADICIONADO EM | 2025-08-18 |
| MD5 |
907e2be961f16cfb419b23be33e6c930
|
Resumo
ObjectivesUndoubted fossil Cebidae have so far been primarily documented from the late middle Miocene of Colombia, the late Miocene of Brazilian Amazonia, the early Miocene of Peruvian Amazonia, and very recently from the earliest Miocene of Panama. The evolutionary history of cebids is far from being well‐documented, with notably a complete blank in the record of callitrichine stem lineages until and after the late middle Miocene (Laventan SALMA). Further documenting their evolutionary history is therefore of primary importance.MaterialRecent field efforts in Peruvian Amazonia (Contamana area, Loreto Department) have allowed for the discovery of an early late Miocene (ca. 11 Ma; Mayoan SALMA) fossil primate‐bearing locality (CTA‐43; Pebas Formation). In this study, we analyze the primate material, which consists of five isolated teeth documenting two distinct Cebidae:Cebussp., a medium‐sized capuchin (Cebinae), andCebuellasp., a tiny marmoset (Callitrichinae).ResultsAlthough limited, this new fossil material of platyrrhines contributes to documenting the post‐Laventan evolutionary history of cebids, and besides testifies to the earliest occurrences of the modernCebuellaandCebus/Sapajuslineages in the Neotropics. Regarding the evolutionary history of callitrichine marmosets, the discovery of an 11 Ma‐old fossil representative of the modernCebuellapushes back by at least 6 Ma the age of theMico/Cebuelladivergence currently proposed by molecular biologists (i.e., ca. 4.5 Ma). This also extends back to > 11 Ma BP the divergence betweenCallithrixand the common ancestor (CA) ofMico/Cebuella, as well as the divergence between the CA of marmosets andCallimico(Goeldi's callitrichine).DiscussionThis discovery from Peruvian Amazonia implies a deep evolutionary root of theCebuellalineage in the northwestern part of South America (the modern western Amazon basin), slightly before the recession of the Pebas mega‐wetland system (PMWS), ca. 10.5 Ma, and well‐before the subsequent establishment of the Amazon drainage system (ca. 9–7 Ma). During the late middle/early late Miocene interval, the PMWS was seemingly not a limiting factor for dispersals and widespread distribution of terrestrial mammals, but it was also likely a source of diversification via a complex patchwork of submerged/emerged lands varying through time.