期刊
ANNALES DE PALEONTOLOGIE
卷 99, 期 3, 页码 217-242出版社
MASSON EDITEUR
DOI: 10.1016/j.annpal.2013.04.001
关键词
Anura; Squamata; Eocene; Namibia; Africa
类别
资金
- Ministry of Foreign Affairs
- CNRS
- College de France
- Museum National d'Histoire Naturelle, Paris
- Namdeb
Three middle Eocene localities (Silica North, Silica South, Black Crow) recently discovered in Namibia have produced terrestrial faunas that rank among the few known from the period of insulation of Africa (Aptian-early Miocene). Collectively, the three localities have yielded anuran amphibians (one pipid frog, the earliest assemblage [three taxa] of ranoid frogs in Africa, one indeterminate family) and squamate reptiles (an amphisbaenian 'lizard', a snake that likely represents a colubroid, and two indeterminate 'lizards'). These Eocene faunas suggest that ranoids, colubroids and African pipids are autochthonous to Africa. However, whereas pipids are vicariants inherited from West Gondwana, ranoids and colubroids (if really autochthonous) originated in Africa from unknown stems. Silica North and Silica South correspond to aquatic environments, permanent fresh water being present in the first locality; the environment of Black Crow was drier. (C) 2013 Elsevier Masson SAS. All rights reserved.
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