Late Jurassic Mammals from Tendaguru, Tanzania, East Africa

被引：29
作者：
Heinrich W.-D. [1 ]
机构：
[1] Museum für Naturkunde, Humboldt-Universität zu Berlin, Institut für Paläontologie, D-10115 Berlin
来源：
Journal of Mammalian Evolution | 1998年 / 5卷 / 4期
关键词：
East Africa; Eupantotheria; Late Jurassic; Mesozoic mammals; Tanzania; Triconodonts;
D O I：
10.1023/A:1020548010203
中图分类号：
学科分类号：
摘要：
Records of Mesozoic mammals are extremely rare in Africa. The only previous record from the Upper Jurassic of Africa is a fragmentary mandible without teeth of Brancatherulum tendagurense. Here I report the discovery of two new mammals from the Upper Jurassic of Tendaguru, Tanzania. The fossils were recovered from the Middle Saurian Bed of the Tendaguru Series. A lower molar of a triconodontid mammal is described as Tendagurodon janenschi gen. et sp. nov., and a fragmentary dentary of a eupantothere as Tendagurutherium dietrichi gen. et sp. nov. The eupantothere in particular contributes to documenting the evolution of mammals during the Mesozoic. The posterior portion of the mandible of Tendagurutherium dietrichi gen. et sp. nov. shows that the angular (tympanic) bone was not yet completely separated from the dentary, a previously undocumented stage of eupantotherian middle ear evolution. © 1998 Plenum Publishing Corporation.
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页码：269 / 290
页数：21
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