Late Miocene potamarchine rodents from southwestern Amazonia, Brazil-with description of new taxa

Autor(es)

Kerber, Leonardo ^[1] ; Negri, Francisco Ricardo ^[2] ; Ribeiro, Ana Maria ^[1] ; Vucetich, Maria Guiomar ^[3] ; De Souza-Filho, Jonas Pereira ^[4]

Afiliação do(s) autor(es)

^[1] Fundacao Zoobot Rio Grande Sul, Museu Ciencias Nat, Secao Paleontol, Ave Salvador Franca 1427, BR-90690000 Porto Alegre, RS - Brazil

^[2] Univ Fed Acre, Lab Paleontol, Campus Floresta, Estrada Canela Fina, Km 12, BR-69980000 Cruzeiro Do Sul, AC - Brazil

^[3] Museo La Plata, Div Paleontol, Paseo Bosque S-N, B1900FWA, La Plata, Buenos Aires - Argentina

^[4] Univ Fed Acre, Lab Paleontol, Campus Univ BR 364, Km 04 Dist Ind, BR-69920900 Rio Branco, AC - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ACTA PALAEONTOLOGICA POLONICA; v. 61, n. 1, p. 191-203, 2016.
• Citações Web of Science: 7

Resumo

The fossil rodents from the southwestern Amazonia of Brazil have been studied since the first half of the 20th century. Several caviomorph rodents were reported for the Neogene of this region, mainly neoepiblemids and dinomyids. Until recently, the record of dinomyids in the Solimoes Formation (Late Miocene) was predominantly based on a few isolated teeth, which made it difficult to make more accurate taxonomic identifications due to the scarcity of diagnostic characters. Here, new remains, more complete than those previously reported, of potamarchine dinomyids from the Neogene of Brazil are described. A new species of Potamarchus and a new genus and species of a Potamarchinae are erected. In addition, new material of Potamarchus murinus and Potamarchus sp. is identified. These data suggest a higher diversity of dinomyids in in the western Amazonia than previously supposed. (AU)

• Processo FAPESP: 11/14080-0 - Os Squamata (Reptilia, Lepidosauria) do Cretáceo e Terciário (Paleogeno/Neogeno) das bacias Bauru, Aiuruoca e Acre: sistemática, evolução e paleoambientes
• Beneficiário: Annie Schmaltz Hsiou
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores