Writers : Reissadat,Naser
Refference : 1th symposium of Iranian paleontological society
Publishing Year : 2007

Abstract :
The Kopet Dagh basin is situated in the north- east of Iran and south of Turkmenistan.? palaeogeography and Palaeobiogeograpy of the basin has been discussed during Upper Barremian-Lower Albian in this paper. Palaeogeographic position of the Kopet Dagh basin is not clear, but based on previous studies this basin has located in south margin of Turan plate. The basin was connected to Alborz and Caucasus basins and most probably to Central Iran.
From a biopalaeogeographical point of view the presence of Heteroceratidae, Desmoceratidae, Ancyloceratidae, Phylloceratidae, Oppeliidae and Deshayesitidae at the Upper Barremian-Lowe Aptian confirm a connection to the Mediterranean via the Caucasus. The ammonite palaeobiogeography indicates that, the Kopet Dagh Basin during the Upper Barremian-Upper Aptian was situated at the north margin of Tethys and was a part of the Mediterranean-Himalayan Province. Turkmeniceras is apparently endemic to the Kopet Dagh Basin. The Parahoplitidae are closer to those from Mangyshlak, Caucasus and Germany than from other parts of the world. The presence of the Cheloniceratidae and Douvilleiceratidae in the Upper Aptian-Albian may indicate the influence of the Boreal Realm. During the Albian, the Kopet Dagh Basin was a part of the hoplitinid Province. Ammonite faunas prove its close relation to the Caspian and Caucasus regions.
Subject List : Ammonite