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Příbram, Czech Republic

Fatka O.,Charles University | Szabad M.,Obrancu miru 75
Bulletin of Geosciences | Year: 2014

Previously published biostratigraphical subdivisions of the "middle" Cambrian succession of the Příbram-Jince Basin in the Barrandian area are summarized and a modified subdivision of twelve biozones proposed. Nine of the biozones are delimited by the first appearance of the eponymous species; five of these are interval zones and four are taxon-range zones. The youngest stratigraphical levels of the fossiliferous sequence in the Litavka River Valley, which lack any characteristic taxa, are assigned to one assemblage zone that is subdivided into two levels defined by the presence of two trilobites and two lingulate brachiopods. The Kodymirus vagans, Hypagnostus parvifrons and Dawsonia bohemica zones, and the Barren interzone between Paradoxides (Eccaparadoxides) pusillus-Paradoxides (Paradoxides) paradoxissimus gracilis, are newly established; the other zones are redefined or the earlier definitions retained. Source


Fatka O.,Charles University | Szabad M.,Obrancu miru 75
Palaontologische Zeitschrift | Year: 2014

A slightly crushed but otherwise nearly complete specimen of the recently described rhombiferan echinoderm genus Vizcainoia Zamora and Smith, 2012 is documented from the "Middle" Cambrian Jince Formation of the Příbram-Jince Basin of the Czech Republic. Isolated thecal plates, earlier determined as calyx plates of the eocrinoid Acanthocystites briareus Barrande, 1887 and/or as eocrinoid sp., occurring in diverse levels of the Jince Formation are reassigned to Dibrachicystidae gen. et sp. indet. Similarly, isolated thecal plates collected from the Buchava Formation of the Skryje-Týřovice Basin could be classified as Dibrachicystidae gen. et sp. indet. Specimens from the Barrandian area are the first records of the family Dibrachicystidae outside of southwestern Europe, of the family otherwise known only from the Languedocian of Montagne Noire of France and from the Caesaraugustian and Languedocian of Iberian Chains of northern Spain. © 2013 Springer-Verlag Berlin Heidelberg. Source


Valent M.,National Museum | Fatka O.,Charles University | Szabad M.,Obrancu miru 75 | Vokae V.,Zabelska 53
Palaeobiodiversity and Palaeoenvironments | Year: 2011

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-Ty̌řovice 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. © Senckenberg Gesellschaft für Naturforschung and Springer 2011. Source


Fatka O.,Charles University | Micka V.,Satrova 662 | Szabad M.,Obrancu miru 75 | Vokac V.,Zabelska 53 | Vorel T.,Czech Geological Survey
Bulletin of Geosciences | Year: 2011

All earlier published concepts and stratigraphical subdivisions of the Cambrian succession in the Skryje-Týřovice Basin are summarized. Forty-two different proposals for lithostratigraphic subdivision published since 1846 are discussed and plotted in seven figures. Here, modified subdivision for the Skryje-Týřovice Basin includes four lithostratigraphic units, the Mileč Member, the Slapnice Member and the Skryje Member, all representing different lithofacies within the newly established Buchava Formation. The whole sedimentary succession contains a rich record of skeletal fauna and is correlated with the Third unnamed Series of the Cambrian System, corresponding to the traditional middle Cambrian Series. Source


Valent M.,National Museum | Fatka O.,Charles University | Szabad M.,Obrancu miru 75 | Micka V.,Satrova 662 | Marek L.,Academy of Sciences of the Czech Republic
Bulletin of Geosciences | Year: 2012

Two orthothecid hyoliths Probactrotheca briketa new genus and new species and Circotheca smetanai new species are described from the Middle Cambrian Buchava Formation of the Skryje-Týřovice Basin in the Czech Republic. The new forms are based on about twenty well-preserved external and internal moulds of opercula and conchs. The stratigraphic range and geographic distributions for both taxa are well known. Source

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