Crinoidea, Echinodermata) from Poland
Title: Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland Author: Mariusz A. Salamon, William I. Ausich, Tomasz Brachaniec, Bartosz J. Płachno, Przemysław Gorzelak Citation style: Salamon Mariusz A., Ausich William I., Brachaniec Tomasz, Płachno Bartosz J., Gorzelak Przemysław. (2020). Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland. "PeerJ" Vol. 8 (2020), art. no e10641, doi 10.7717/peerj.10641 Uncovering the hidden diversity of Mississippian crinoids (Crinoidea, Echinodermata) from Poland Mariusz A. Salamon1, William I. Ausich2, Tomasz Brachaniec1, Bartosz J. Pªachno3 and Przemysªaw Gorzelak4 1 Faculty of Natural Sciences, Institute of Earth Sciences, University of Silesia in Katowice, Sosnowiec, Poland 2 School of Earth Sciences, Ohio State University, Columbus, OH, United States of America 3 Faculty of Biology, Institute of Botany, Jagiellonian University in Kraków, Cracow, Poland 4 Institute of Paleobiology, Polish Academy of Sciences, Poland, Warsaw, Poland ABSTRACT Partial crinoid crowns and aboral cups are reported from the Mississippian of Poland for the first time. Most specimens are partially disarticulated or isolated plates, which prevent identification to genus and species, but regardless these remains indicate a rich diversity of Mississippian crinoids in Poland during the Mississippian, especially during the late Viséan. Lanecrinus? sp. is described from the late Tournaisian of the D¦bnik Anticline region. A high crinoid biodiversity occurred during late Viséan of the Holy Cross Mountains, including the camerate crinoids Gilbertsocrinus? sp., Platycrinitidae Indeterminate; one flexible crinoid; and numerous eucladid crinoids, including Cyathocrinites mammillaris (Phillips), three taxa represented by partial cups left in open nomenclature, and numerous additional taxa known only from isolated radial plates, brachial plates, and columnals.
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