A crinoid concentration Lagerstatte in the Turonian (Late Cretaceous) Conulus Bed (Miechow-Wolbrom area, Poland)

被引：24

作者：

Salamon, Mariusz A. ^{[1
]}

Gorzelak, Przemyslaw ^{[2
]}

Borszcz, Tomasz ^{[1
]}

Gajerski, Artur ^{[1
]}

Kazmierczak, Jolanta ^{[1
]}

机构：

[1] Univ Silesia, Fac Earth Sci, PL-41200 Sosnowiec, Poland

[2] Polish Acad Sci, Inst Paleobiol, PL-00818 Warsaw, Poland

来源：

GEOBIOS | 2009年 / 42卷 / 03期

关键词：

Crinoids; Comatulids; Isocrinids; Turonian; Cretaceous; Poland; EVOLUTIONARY IMPLICATIONS; COMATULID CRINOIDS; STALKED CRINOIDS; PREDATION; ECHINODERMATA;

D O I：

10.1016/j.geobios.2008.10.008

中图分类号：

Q91 [古生物学];

学科分类号：

0709 ; 070903 ;

摘要：

More than one hundred centrodorsals of the comatulid crinoid Glenotremites paradoxus have been found in Turonian deposits (Upper Cretaceous) in the Miechow-Wolbrom area (southern Poland). This is the first dense occurrence of the genus Glenotremites in the Upper Cretaceous of Poland. Furthermore, so many individuals of this species in one level (the so-called Conulus Bed) forming a crinoid Konzentrat-Lagerstatte are very surprising because only disarticulated remains (cirrals and brachials) are encountered in the older (Cenomanian and earliest Turonian) and younger (late Turonian) deposits. The Glenotremites individuals are accompanied by isocrinids, which prove that stalked forms remained in shallow-water settings for some time after the initiation of the Mesozoic marine revolution. (C) 2009 Elsevier Masson SAS. All rights reserved.

引用

页码：351 / 357

页数：7