Abstract
More than one hundred centrodorsals of the comatulid crinoid Glenotremites paradoxus have been found in Turonian deposits (Upper Cretaceous) in the Miechów-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-Lagerstätte 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.
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