Dinosaurs and other fossil vertebrates from fluvial deposits in the Lower Cretaceous of southern Tunisia
Dinosaurs and other fossil vertebrates from fluvial deposits in the Lower Cretaceous of southern Tunisia
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DOI：
10.1016/s0031-0182(99)00167-4
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发表时间：
2000-04-01
影响因子：
3
通讯作者：
Trueman, C
中科院分区：
文献类型：
--
作者：
Benton, MJ;Bouaziz, S;Trueman, C
据报道，突尼斯南部塔塔温地区的切尼尼组发现了恐龙和其他脊椎动物（鲨鱼、硬骨鱼、腔棘鱼、海龟、鳄鱼、翼龙）的遗骸。该地层是“大陆间层”的一部分，是一系列早白垩世到晚白垩世的大陆沉积物，分布在整个北非和撒哈拉沙漠。它由宽阔河流的坝和河道沉积物组成，这些河流从撒哈拉中部地区向北西向流向特提斯岛南岸。 “隔间大陆”中的恐龙化石单元的年代可追溯到欧特里维期至塞诺曼期，切尼尼组的年龄可能为阿尔布阶。恐龙化石包括兽脚亚目鲨齿龙和棘龙的丰富牙齿。以及兽脚类恐龙和中型蜥脚类恐龙的颅后元素。鸟螯科动物的牙齿是该地区首次发现翼龙。恐龙骨骼和牙齿被运送了一段距离并沉积在河道滞后中，与受损程度较低的当地衍生材料有关，例如蕨叶、粪化石、鱼牙和鱼鳞以及鳄鱼盾。 (C) 2000 Elsevier Science B.V. 保留所有权利。
Remains of dinosaurs and other vertebrates (sharks, bony fishes, coelacanths, turtles, crocodilians, pterosaurs) are reported from the Chenini Formation of the Tataouine region in southern Tunisia. The Formation is part of the 'continental intercalaire', a succession of continental deposits of Early to Late Cretaceous age distributed over the whole of North Africa and the Sahara. It consists of bar and channel deposits of broad rivers that flowed NNW from the mid-Sahara region towards the southern shore of Tethys. Dinosaur-bearing units in the 'continental intercalaire' have been dated to the Hauterivian to Cenomanian, and the Chenini Formation is possibly Albian in age. Dinosaur fossils include abundant teeth of the theropods Carcharodontosaurus and Spinosaurus. as well as postcranial elements of theropods and a medium-sized sauropod. A tooth of an ornithocheirid is the first report of a pterosaur from the region. The dinosaur bones and teeth were transported some distance and deposited in a channel lag, associated with less damaged locally derived material such as fern fronds, coprolites, fish teeth and scales, and crocodilian scutes. (C) 2000 Elsevier Science B.V. All rights reserved.