匈牙利梅塞克山中三叠世(ANISIAN)头足类动物

IF 1.6 3区 地球科学 Q2 GEOLOGY Rivista Italiana Di Paleontologia E Stratigrafia Pub Date : 2022-11-03 DOI:10.54103/2039-4942/17253
A. Vörös, G. Konrád, Krisztina Sebe
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引用次数: 1

摘要

最近在Meccek山脉(匈牙利南部)中三叠纪Zuhánya石灰岩组发现的鹦鹉螺和菊石证明,该组包含整个Pelsonian亚段和Anisian阶的下伊利里亚亚段。根据已鉴定的11种菊石物种,Balatonicus和Trinodosus带有完整的记录。Zuhánya石灰岩的地层位置总体上与巴拉顿高地的Felsörs石灰岩相对应。对头足类动物群的古生物地理学评估表明,鹦鹉螺动物群的元素主要指向日耳曼人,部分指向塞法迪人。另一方面,菊石动物群没有日耳曼元素;大多数物种都具有阿尔卑斯山的特征,而布兰科原拉迪斯藻则表明存在二干旱联系,或者至少偶尔出现远洋生物。这些结果支持了先前的古地理假设,并表明在三叠纪中期,梅塞克序列位于欧洲大陆架沿岸,位于文德利西亚-波希米亚大陆和开阔的特提斯洋之间。
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MIDDLE TRIASSIC (ANISIAN) CEPHALOPODS FROM THE MECSEK MOUNTAINS, HUNGARY
Recent nautiloid and ammonoid finds from the Middle Triassic Zuhánya Limestone Formation in the Mecsek Mountains (south Hungary) proved that the formation encompasses the whole Pelsonian and the lower Illyrian substages of the Anisian Stage. On the basis of 11 identified ammonoid species, the Balatonicus and Trinodosus zones have a complete record. The stratigraphical position of the Zuhánya Limestone on the whole corresponds to the Felsőörs Limestone in the Balaton Highland. The palaeobiogeographical evaluation of the cephalopod fauna showed that the elements of the nautilid fauna point mostly to Germanic and partly to Sephardic affinity. On the other hand, the ammonoid fauna has no Germanic elements; most of the species are Alpine in character, while the species Procladiscites brancoi indicates Dinaridic connection, or at least an occasional appearance of pelagic organisms. These results endorse the previous palaeogeographical assumption and suggest that during the Middle Triassic the Mecsek succession was situated along the European shelf, between the Vindelician-Bohemian Land and the open Tethyan Ocean.
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来源期刊
CiteScore
3.60
自引率
4.30%
发文量
28
审稿时长
>12 weeks
期刊介绍: The Rivista Italiana di Paleontologia e Stratigrafia was founded in 1895. It publishes original papers dealing with all fields of paleontology and of stratigraphy, from Italy and the Mediterranean to the Tethys, as well across the globe from China to North America.
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