globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.06.029
论文题名:
Dwarfism of irregular echinoids (Echinocorys) from Poland during the Campanian-Maastrichtian Boundary Event
作者: Salamon M.A.; Brachaniec T.; Brom K.R.; Lach R.; Trzęsiok D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 457
起始页码: 323
结束页码: 329
语种: 英语
英文关键词: Cretaceous ; Echinocorys ; Echinoids ; Poland ; “Lilliput effect”
英文摘要: The echinoid genus Echinocorys is one of the dominant irregular echinoid in the Cretaceous of Poland. Our analysis of the body size trends of these echinoids shows that they underwent dwarfism in the early Maastrichtian. The reduction in body size in these echinoids was likely an ecological response to the major climate perturbations connected with the Campanian-Maastrichtian Boundary Event (CMBE) that was characterized by a long-lasting negative carbon isotope excursion and cooling. This is consistent with the fact that food limitations and cold temperatures are among the major factors decreasing growth rates in modern echinoids. So far, in the case of echinoids, the so-called ‘Lilliput Effect’ has been only recognized in the early Danian (early Paleogene) heart urchins (Atelostomata). Thus, our study shows that the reduction in the body size in echinoids was a more common biotic response to environmental stress than previously thought. © 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/68338
Appears in Collections:过去全球变化的重建

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作者单位: Department of Paleontology and Stratigraphy, Faculty of Earth Sciences, University of Silesia, Będzińska 60 str, Sosnowiec, Poland; Faculty of Earth Sciences, University of Silesia, Centre for Polar Studies KNOW (Leading National Research Centre), Będzińska 60 str, Sosnowiec, Poland; Department Geochemistry, Mineralogy and Petrology, Faculty of Earth Sciences, University of Silesia, Będzińska 60 str, Sosnowiec, Poland

Recommended Citation:
Salamon M.A.,Brachaniec T.,Brom K.R.,et al. Dwarfism of irregular echinoids (Echinocorys) from Poland during the Campanian-Maastrichtian Boundary Event[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,457
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