New Gobiolagus (Mammalia: Lagomorpha) Material from the Middle Eocene of Erden Obo (Inner Mongolia, China)

详细信息   

• 责任者：Lucja Fostowicz Frelik (American Museum of Natural History ; New York 10024 ; USA) ; Li Chuankui
• 刊名：Vertebrata Palasiatica
• 出版年：2012
• 卷期：50(3)
• 关键词：兔形目 ; Lagomorpha ; 二连盆地 ; Erlian Basin
• 页码：p.219-236
• 图表：8 illus., 2 tables, 29 refs.
• 分类号：1101
• issnNo：ISSN1000-3118
• isbnNo：CN11-1905/Q

摘要

A new species of Gobiolagus  (Lagomorpha: Palaeolagidae) from the Middle Eocene locality of Aliwusu ( Erlian Basin,  Inner Mongolia, China) is described. Gobiolagus aliwusuensis sp. nov. is characterized by its medium size, accessory cusp on the anterior wall of P3 central lobe and by two distinct buccal cusps on P4. The material from Aliwusu constitutes the only record of Gobiolagus with complete upper dental rows, which contain previously unknown P2 and M3. This discovery adds new data on the morphology and diversification of Middle Eocene lagomorph fauna in central Asia.