Have a personal or library account? Click to login
New palynological data for Toarcian (Lower Jurassic) deep-marine sandstones of the Western Caucasus, southwestern Russia Cover

New palynological data for Toarcian (Lower Jurassic) deep-marine sandstones of the Western Caucasus, southwestern Russia

Open Access
|Oct 2018

Abstract

Information on Jurassic palynomorphs from the Greater Caucasus is potentially of great importance, but its availability to the international research community is severely limited. New palynological data for Toarcian deposits of the Western Caucasus are recorded in the present paper. Particularly, dinoflagellate cysts are described for the first time from the Bagovskaja Formation; palynomorphs are found in sandstone levels within this unit. The most representative assemblage includes pollen (with predominant bisaccate pollen), spores (Cyathidites being commonest), and dinoflagellate cysts amongst which the predominant taxon is Nannoceratopsis spiculata. The dinocyst assemblage implies a late Toarcian age for the upper part of the Bagovskaja Formation. On the basis of these new palynostratigraphical results, the range of the formation is extended; previously, only the lower part had been dated on ammonite evidence.

DOI: https://doi.org/10.2478/logos-2018-0012 | Journal eISSN: 2080-6574 | Journal ISSN: 1426-8981
Language: English
Page range: 127 - 136
Submitted on: Sep 13, 2017
Accepted on: Apr 28, 2018
Published on: Oct 4, 2018
Published by: Adam Mickiewicz University
In partnership with: Paradigm Publishing Services
Publication frequency: 3 issues per year

© 2018 Anna A. Goryacheva, Svetlana O. Zorina, Dmitry A. Ruban, Alexei A. Eskin, Konstantin I. Nikashin, Bulat M. Galiullin, Vladimir P. Morozov, Anna V. Mikhailenko, Olesya V. Nazarenko, Pavel P. Zayats, published by Adam Mickiewicz University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.