The Permian – Triassic boundary in Peninsular India and the extinction of the Glossopteridales

IF 7.2 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Gondwana Research Pub Date : 2024-10-15 DOI:10.1016/j.gr.2024.10.005

Anju Saxena , Christopher J. Cleal , Kamal Jeet Singh

引用次数: 0

Abstract

The Glossopteridales was a distinctive order of gymnospermous seed-plants that occurred widely in the Permian of Gondwana. Some authors have suggested that they may also have occurred in the Triassic and so had survived the catastrophic Permian – Triassic extinction event. This suggestion was mainly based on records from peninsular India such as from the Panchet Formation, which traditionally was regarded as Triassic in age. This paper reviews the evidence for a Triassic age for these floras and it is argued that they are in fact late Permian. There is no clear evidence that the Glossopteridales survived the P/T biotic crisis in India and only unequivocal evidence is in China that they survived into the Triassic.

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印度半岛的二叠纪-三叠纪界线和蝶形目动物的灭绝

裸子植物门（Glossopteridales）是一种独特的裸子植物门，广泛分布于冈瓦纳的二叠纪。一些学者认为，它们可能也曾出现在三叠纪，因此在二叠纪-三叠纪的大灭绝中幸存了下来。这一观点主要是基于印度半岛的记录，如传统上被认为是三叠纪的潘切特地层。本文回顾了这些植物群三叠纪年龄的证据，并认为它们实际上是二叠纪晚期的植物群。没有明确的证据表明蝶形花类在印度经历了二叠纪/三叠纪的生物危机，只有中国有明确的证据表明它们存活到了三叠纪。

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

Gondwana Research 地学-地球科学综合

CiteScore

12.90

自引率

6.60%

发文量

298

审稿时长

65 days

期刊介绍： Gondwana Research (GR) is an International Journal aimed to promote high quality research publications on all topics related to solid Earth, particularly with reference to the origin and evolution of continents, continental assemblies and their resources. GR is an "all earth science" journal with no restrictions on geological time, terrane or theme and covers a wide spectrum of topics in geosciences such as geology, geomorphology, palaeontology, structure, petrology, geochemistry, stable isotopes, geochronology, economic geology, exploration geology, engineering geology, geophysics, and environmental geology among other themes, and provides an appropriate forum to integrate studies from different disciplines and different terrains. In addition to regular articles and thematic issues, the journal invites high profile state-of-the-art reviews on thrust area topics for its column, ''GR FOCUS''. Focus articles include short biographies and photographs of the authors. Short articles (within ten printed pages) for rapid publication reporting important discoveries or innovative models of global interest will be considered under the category ''GR LETTERS''.