Ctenodactylids from the Lower and Middle Miocene of Saudi Arabia

被引:9
|
作者
Antoñanzas, RL [1 ]
Sen, S [1 ]
机构
[1] Museum Natl Hist Nat, CNRS, UMR 5143, Dept Hist Terre, F-75005 Paris, France
关键词
Rodentia; Ctenodactylidae; phylogeny; Miocene; Saudi Arabia;
D O I
10.1111/j.0031-0239.2004.00424.x
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
The ctenodactylids from the Lower and Middle Miocene of Saudi Arabia are represented by two species: Sayimys intermedius (Sen and Thomas, 1979) and Sayimys assarrarensis sp. nov. This new taxon differs from the other species of Sayimys by its larger size together with an association of characters such as the presence of a metalophulid II in d4 and the strength of the anteroloph and posteroloph in P4. A cladistic analysis involving Prosayimys flynni, Sayimys obliquidens, S. assarrarensis sp. nov., S. intermedius, S. sivalensis, S. baskini, and Metasayimys curvidens is provided. Sayimys assarrarensis sp. nov. nests between Sayimys obliquidens and Metasayimys curvidens as a relatively primitive taxon.
引用
收藏
页码:1477 / 1494
页数:18
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