Fin spine of a ctenacanthoid shark (Elasmobranchii, Ctenacanthoidea) from the Upper Stephanian of the Krkonoše Piedmont Basin (Bohemia)


Authors: Štamberg S

Published in: Bulletin of Geosciences, volume 76, issue 2; pages: 141 - 148;

Keywords: Chondrichthyes, Ctenacanthoidea, Osteology, Stephanian, Bohemia,

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An isolated fragment of a fin spine is described from Stephanian C of the Krkonoše Piedmont Basin (Bohemia). The well-preserved internal structure of the spine with a central cavity and trabecular dentine permits to assign this find to a new genus and species Turnovichthys magnus. Several dermal denticles, probably from the same animal as the fin spine; a tooth, probably of the genus Bohemiacanthus; and a scale of the actinopterygian fish Sphaerolepis kounoviensis, are adhering to the fin spine.