globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.02.057
论文题名:
Reduction of vertebrate coprolite diversity associated with the end-Permian extinction event in Vyazniki region, European Russia
作者: Niedźwiedzki G.; Bajdek P.; Qvarnström M.; Sulej T.; Sennikov A.G.; Golubev V.K.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 450
起始页码: 77
结束页码: 90
语种: 英语
英文关键词: Early triassic ; Faunal change ; Fossil feces ; Late permian ; Russia ; Vertebrates
英文摘要: This study investigates the paleoecological significance of vertebrate coprolites collected from seven sections and three lithofacies of the uppermost Permian and lowermost Triassic succession from the Vyazniki site in the European part of Russia. The analyzed specimens (coprolites and possibly some cololites) were grouped into nine morphotypes (A-I). The coprolite morphotypes were characterized geochemically and compared to the record of other Permian and Triassic coprolites worldwide. Based on the stratigraphic position, shape, structure and composition, all morphotypes were linked to supposed producers. The phosphatic composition of most of the morphotypes and inclusions of arthropod remains, fish scales and bone fragments, suggest that they were produced by carnivores, but non-phosphatic, carbonate-rich, large and oval-shaped coprolites with impressions after plant remains have also been found. The extinction of terrestrial vertebrates around the Permian-Triassic boundary in Russia is interpreted to have occurred within a few thousands of years. Here, we show a pattern of coprolite morphotypes disappearing across this boundary that is consistent with a relatively sudden change in the vertebrate faunal composition across this interval. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68454
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作者单位: Department of Organismal Biology, Evolutionary Biology Center, Uppsala University, Norbyvägen 18A, Uppsala, Sweden; Aleja Najświetszej Maryi Panny 20/20A, Czestochowa, Poland; Institute of Paleobiology, Polish Academy of Sciences, Twarda 51/55, Warsaw, Poland; Borissiak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya 123, Moscow, Russian Federation; Kazan Federal University, Kremlyovskaya 18, Kazan, Russian Federation

Recommended Citation:
Niedźwiedzki G.,Bajdek P.,Qvarnström M.,et al. Reduction of vertebrate coprolite diversity associated with the end-Permian extinction event in Vyazniki region, European Russia[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,450
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