Upper Triassic (Norian) Cephalopods from the Ekrasar formation (Shemshak Group) of northern Alborz, Iran

Journal article


Publication Details

Author(s): Seyed-Emami K, Fürsich F, Wilmsen M, Majidifard MR, Shekarifard A
Journal: Rivista Italiana Di Paleontologia E Stratigrafia
Publication year: 2009
Volume: 115
Journal issue: 2
Pages range: 189-198
ISSN: 0035-6883
Language: English


Abstract


The following ammonoid and nautiloid taxa are described for the first time from the Upper Triassic succession (Ekrasar Formation, Shemshak Group) of northern Alborz, Iran: Arcestes sp., Arcestes (Pararcestes?) sp., Thisbites cf. agricolae Mojsisovics, Stikinoceras cf. kerri Mc Learn, Giesbachites sp., Griesbachites cf. pseudomedleyanus Diener, Griesbachites cf. himalayanus Wang & He, and Proclydonautilus? sp. Palaeobiogeographically, the studied ammonoids are Tethyan in character, and stratigraphically attributed to the lower Lower Norian (Guembelites jandianus Zone, possibly also Malayites paulckei Zone). The biostratigraphic data of this study demonstrate the diachronous base of the Shemshak Group: it is older in the northern Alborz (lower Lower Norian), but younger in Central Iran and probably also in the southern Alborz (Middle Norian).



FAU Authors / FAU Editors

Fürsich, Franz Prof. Dr.
Naturwissenschaftliche Fakultät
Wilmsen, Markus PD Dr.
Naturwissenschaftliche Fakultät


Additional Organisation
Lehrstuhl für Paläoumwelt


External institutions with authors

University of Tehran


How to cite

APA:
Seyed-Emami, K., Fürsich, F., Wilmsen, M., Majidifard, M.R., & Shekarifard, A. (2009). Upper Triassic (Norian) Cephalopods from the Ekrasar formation (Shemshak Group) of northern Alborz, Iran. Rivista Italiana Di Paleontologia E Stratigrafia, 115(2), 189-198. https://dx.doi.org/10.13130/2039-4942/6378

MLA:
Seyed-Emami, Kazem, et al. "Upper Triassic (Norian) Cephalopods from the Ekrasar formation (Shemshak Group) of northern Alborz, Iran." Rivista Italiana Di Paleontologia E Stratigrafia 115.2 (2009): 189-198.

BibTeX: 

Last updated on 2018-16-09 at 04:10