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Carinolithidae fam. nov., Carinolithes bohemicus sp. nov. and Slehoferites slehoferi gen. et sp. nov. – new hyolithid taxa from the Bohemian middle Cambrian (Skryje-Týřovice Basin, Czech Republic)

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Abstract

The hyoliths Slehoferites slehoferi gen. et sp. nov. and Carinolithes bohemicus sp. nov. are described from carbonatic nodules and shale at different stratigraphic levels within the middle Cambrian Buchava Formation of the Skryje-Týřovice Basin in the Czech Republic. Carinolithes bohemicus sp. nov. may be distinguished by a slightly dorsally curved conch with three longitudinal rounded ridges forming a distinct keel on the dorsum and by a platyclaviculate operculum with broad clavicles with their distal ends open, whereas the defining traits of Slehoferites slehoferi gen. et sp. nov. are a conch with a slightly rounded triangular cross-section, distinct muscle scar on the ligula and a platyclaviculate operculum with an almost circular outline and with broadly diverging cardinal processes clavicles (about 40 degrees for clavicles) with a cone cavity below each clavicle. Both taxa are combined under the new family Carinolithidae which differs from other hyolithid families in having a dorsum with developed keel-like ridges, faily long ligula, and a platyclaviculate operculum with distinct and broadly diverging cardinal processes.

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Acknowledgements

The authors are indebted to P. Štys (Charles University in Prague) for consultation on nomenclatorial rules. This study was supported by Project of the Ministry of Education, Youth and Sports of the Czech Republic MSM 0021620855 (Material flow mechanisms in the upper spheres of the Earth), the Czech Science Foundation through the Project No. 205/09/1521 (Feeding strategies in Cambrian to Middle Ordovician of the Barrandian Region) and by project of Ministry of Culture CR No. DE06P04OMG009 (Scientific and museological revision and documentation of selected parts of type collection deposited in National Museum Prague).

We thank Prof. J.M. Malinky, San Diego City College, U.S.A. and Dr. M. Martí-Mus, Universidad de Extremadura, Badajoz, Spain for valuable suggestions, constructive comments and linguistic improvement.

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Authors and Affiliations

  1. Department of Palaeontology, National Museum, Václavské nám. 68, 115 79, Prague 1, Czech Republic

    Martin Valent

  2. Institute of Geology and Palaeontology, Charles University, Albertov 6, 128 43, Prague 2, Czech Republic

    Oldřich Fatka

  3. Obránců míru 75, 261 02, Příbram VII, Czech Republic

    Michal Szabad

  4. Zábělská 53, 312 00, Plzeň, Czech Republic

    Václav Vokáč

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  1. Martin Valent
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  2. Oldřich Fatka
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Correspondence to Oldřich Fatka.

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Valent, M., Fatka, O., Szabad, M. et al. Carinolithidae fam. nov., Carinolithes bohemicus sp. nov. and Slehoferites slehoferi gen. et sp. nov. – new hyolithid taxa from the Bohemian middle Cambrian (Skryje-Týřovice Basin, Czech Republic). Palaeobio Palaeoenv 91, 101–109 (2011). https://doi.org/10.1007/s12549-011-0049-1

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