努力完善特提斯西部的纪元（上三叠世）同形生物地层学：对反复出现的 "多同形问题 "的修订

IF 2 3区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Geological Magazine Pub Date : 2024-05-03 DOI:10.1017/s0016756824000104

Viktor Karádi

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引用次数: 0

摘要

数十年来，北纪锥齿动物分类法过于简化的问题阻碍了特提斯海盆地西部北纪锥齿动物生物地层学的发展。大多数地层学研究使用北美特有的 Epigondolella multidentata 这一名称来收集指示中 Norian 亚段下部地层的标本。为了解决 "multidentata 问题"，我们对布达丘陵（匈牙利）Mátyás Hill 断面的北新世半沉积珍稀白云岩进行了详细的锥状石生物地层学研究。该剖面的年代范围从下诺纪子期（Lacian-3）的上部到中诺纪子期（Alaunian-1）的下部。引入了新物种 Ancyrogondolella manueli n. sp.，并首次在特提斯地区记录了 A. transformis。所研究的针石动物群大大提高了特提斯西部与东太平洋之间的相关性。

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Towards a refined Norian (Upper Triassic) conodont biostratigraphy of the western Tethys: revision of the recurrent ‘multidentata-issue’

The issue of oversimplified Norian conodont taxonomy has set back the development of Norian conodont biostratigraphy of the western Tethys Realm for decades. The majority of stratigraphic studies used the name Epigondolella multidentata, a North American endemic, to gather specimens indicative of strata from the lower part of the middle Norian substage. Detailed conodont biostratigraphic investigations were carried out on the Norian hemipelagic cherty dolostones of the Mátyás Hill section in the Buda Hills (Hungary) in order to resolve the ‘multidentata problem’. The age of the section ranges from the upper part of the lower Norian substage (Lacian-3) to the lower part of the middle Norian substage (Alaunian-1). The new species Ancyrogondolella manueli n. sp. is introduced, and A. transformis is documented for the first time in the Tethys. The studied conodont fauna significantly improves the correlation potential between the western Tethys and the eastern Pacific.

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来源期刊

Geological Magazine 地学-地球科学综合

CiteScore

4.70

自引率

0.00%

发文量

111

审稿时长

3 months

期刊介绍： Geological Magazine, established in 1864, is one of the oldest and best-known periodicals in earth sciences. It publishes original scientific papers covering the complete spectrum of geological topics, with high quality illustrations. Its worldwide circulation and high production values, combined with Rapid Communications and Book Review sections keep the journal at the forefront of the field. This journal is included in the Cambridge Journals open access initiative, Cambridge Open Option.