Biostratigraphy of Upper Devonian sections in the western Altai-Sayany region based on bryozoans

被引：1

作者：

Tolokonnikova, Z. A. ^{[1
]}

机构：

[1] Kuzbass State Pedag Acad, Novokuznetsk 654027, Russia

来源：

STRATIGRAPHY AND GEOLOGICAL CORRELATION | 2012年 / 20卷 / 06期

关键词：

Upper Devonian; Altai-Sayany folded region; bryozoans; biostratigraphy;

D O I：

10.1134/S0869593812060081

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

The analysis of characteristic bryozoan assemblages from Upper Devonian sections of the western Altai-Sayany region made it possible to define the following biostratigraphic units: lower Frasnian Leioclema vassinense, upper Frasnian Petalotrypa bifoliata, basal Famennian Leioclema numerosum, upper lower Famennian Megacanthopora glubokaensis, upper middle Famennian Eridocampylus striatum-Atactotoechus cellatus, and upper Famennian Monotrypa carbonica-Pseudobatostomella longipora beds. Six bryozoans species from type Frasnian assemblages of the western Altai-Sayany folded region are also recorded in the Nakhichevan Republic (Transcaucasia region) and Kazakhstan, while 11 Famennian species from the study region are known in Mongolia, the eastern Transbaikal region, Kazakhstan, China, and the South Urals.

引用

页码：528 / 540

页数：13