Devonian Nautiloids of Eastern and Southern Morocco: Systematics, Biostratigraphy, Biogeography and Response to Devonian "Events"

PI将建立第一个系统分析， 冈瓦纳北方（北非-摩洛哥）泥盆纪鹦鹉螺 现存牙形石和菊石中的头足类 生物地层格架 这些数据将提供 1）建立相互关系的必要基础 泥盆纪的四个主要海洋生物群（鹦鹉螺 和菊石头足类动物、三叶虫和牙形石），2）至 帮助阐明时间的联系，以同时代的鱼类（成员 鳞皮类、软骨鱼类和硬骨鱼类）， 更好地了解远洋海洋动力学， 3)为了更清楚地理解 泥盆纪“事件”提供了详细的分析， 第三组增加牙形石和菊石数据，以及4） 这是第一次有一个明确的比较， 在冈瓦纳大陆的动物群之间， 到欧亚大陆的南部边缘（波罗的海+劳伦提斯） 以及西澳大利亚和中国， 冈瓦纳大陆的低纬度盆地， 丰富的鹦鹉螺状头足类动物。 最后一个方面是 特别重要的是， 古地理重建， 生物地层学和地理学数据。 这项工作将 与正在进行的菊石项目一起进行， 迈克尔·豪斯（英国南安普敦大学）和托马斯·贝克尔 (Free大学，柏林）在北非和澳大利亚和 Meseta、Anti-Atlas和 皇家领导下的摩洛哥廷杜夫地区 摩洛哥地质总局 L'Energie et des Mines）。

PI will establish the first systematic analysis of northern Gondwana (North Africa-Morocco) Devonian nautiloid cephalopods within the existing conodont and ammonoid biostratigraphic framework. These data will provide the necessary foundation 1) to establish correlation between four of the major marine groups of the Devonian (nautiloid and ammonoid cephalopods, trilobites, and conodonts), 2) to help elucidate the temporal tie to coeval fish (members of the Placodermi, Chondrichtyes and Osteichthyes) and thus provide a better understanding of pelagic marine dynamics, 3) to understand more clearly evolutionary perturbations of Devonian "events" by providing a detailed analysis of a third group of augment conodont and ammonoid data, and 4) to allow, for the first time, a definitive comparison to be made between faunas of that portion of Gondwana juxtaposed to the southern margin of Euramerica (Baltica + Laurentia) and those of western Australia and China, the only other regions of Gondwana with low latitude basins containing abundant nautiloid cephalopods. This last aspect is especially important in the continuing assessment of paleogeographic reconstructions on the basis of biostratigraphic and biogeographic data. This work will be done in conjunction with ongoing ammonoid projects of Michael House (Univ. Southhampton, UK) and Thomas Becker (Free University, Berlin) in North Africa and Australia and an existing mapping project in the Meseta, Anti-Atlas and Tindouf regions of Morocco under the direction of the Royal Maroc Division de la Geologie Generale (Ministere de L'Energie et des Mines).