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标题：Late Miocene potamarchine rodents from southwestern Amazonia, Brazil—with description of new taxa
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作者：LEONARDO KERBER ; FRANCISCO RICARDO NEGRI ; ANA MARIA RIBEIRO 等
期刊名称：Acta Palaeontologica Polonica
印刷版ISSN：0567-7920
电子版ISSN：1732-2421
出版年度：2016
卷号：61
期号：1
页码：191-203
DOI：10.4202/app.00091.2014
语种：English
出版社：Institute of Paleobiology PAS
摘要：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 Solimões 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.
关键词：Rodentia;Neogene;Solimões Formation;northern South America;Amazonia;Acre;Brazil