Two trepostome bryozoans from the Assistance Formation (Permian, Roadian) near Lake Hazen, Ellesmere Island, Canada

IF 1.2 4区地球科学 Q2 GEOLOGY

Gff Pub Date : 2021-11-17 DOI:10.1080/11035897.2021.1989716

A. Ernst, H. A. Nakrem

引用次数: 1

Abstract

ABSTRACT Rhombotrypella superangustata and Dyscritellina fuglensis (Bryozoa, Trepostomata) were found for the first time in the Assistance Formation of Ellesmere Island, Canada. Both species correlate the Roadian age of the Assistance Formation with contemporary deposits in Northern Russia and Bjørnøya, Norway. They possess robust erect colonies adapted for shallow shelf conditions with moderate energy depositional environment with low sedimentation rate and hard substrate.

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加拿大埃尔斯米尔岛黑森湖附近援助组（二叠纪，Roadian）的两种环口苔藓虫

摘要在加拿大埃尔斯米尔岛的辅助群中首次发现了超鳗形锥虫(Rhombotrypella superangustata)和富格丽锥虫(Dyscritellina fuglensis)。这两个物种都将辅助组的路迪亚时代与俄罗斯北部和挪威Bjørnøya的当代矿床联系起来。它们具有强壮的直立菌落，适合于浅海陆架条件，中等能量沉积环境，低沉积速率和硬基质。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Gff 地学-地质学

CiteScore

2.80

自引率

10.00%

发文量

审稿时长

>12 weeks

期刊介绍： GFF is the journal of the Geological Society of Sweden. It is an international scientific journal that publishes papers in English covering the whole field of geology and palaeontology, i.e. petrology, mineralogy, stratigraphy, systematic palaeontology, palaeogeography, historical geology and Quaternary geology. Systematic descriptions of fossils, minerals and rocks are an important part of GFF''s publishing record. Papers on regional or local geology should deal with Balto-Scandian or Northern European geology, or with geologically related areas. Papers on geophysics, geochemistry, biogeochemistry, climatology and hydrology should have a geological context. Descriptions of new methods (analytical, instrumental or numerical), should be relevant to the broad scope of the journal. Review articles are welcome, and may be solicited occasionally. Thematic issues are also possible.