Simakocrinus gen. nov. (Crinoidea, col.) from the Bohemian Early and Middle Devonian of the Barrandian Area (the Czech Republic)

2013 ◽  
pp. 65-68 ◽  
Author(s):  
Rudolf J. Prokop ◽  
L.A. Muir ◽  
J.P. Botting ◽  
Y.D. Zhang ◽  
J.P. Lin
Keyword(s):  
Czech Republic ◽  
Middle Devonian ◽  
The Czech Republic ◽  
Barrandian Area

scholarly journals Problematic Sclerites Eurytholia from the Lower and Middle Devonian of the Czech Republic

2019 ◽  
Vol 53 (1) ◽  
pp. 1-11
Author(s):  
Michal Mergl
Keyword(s):  
Czech Republic ◽  
New Species ◽  
Middle Devonian ◽  
Lower Devonian ◽  
Time Range ◽  
Formal Description ◽  
The Czech Republic ◽  
Barrandian Area ◽  
First Time ◽  
A New Species

AbstractProblematic phosphatic sclerites Eurytholia are reported for the first time from the Middle Devonian. Unequivocal sclerites were observed in limestones of Emsian to late Eifelian age in six localities of the Barrandian area of the Central Bohemia of the Czech Republic. Formerly observed size and shape variations of Eurytholia sclerites prevent formal description of a new species on few specimens of Emsian and Eifelian age. Therefore the new specimens are identified as Eurytholia aff. bohemica. Their presence indicates longer time range of the Eurytholia animal, covering not only the Ordovician, the Silurian and the earliest Devonian as known formerly, but also late Lower Devonian and the Middle Devonian. Similar features in morphology and histology of Eurytholia indicate relationship to a conodont Pseudooneotodus and a support suggestion about the vertebrate origin of Eurytholia sclerites.

Stratigraphy of the Middle Devonian boundary: Formal definition of the susceptibility magnetostratotype in Germany with comparisons to sections in the Czech Republic, Morocco and Spain

2006 ◽  
Vol 418 (1-2) ◽  
pp. 31-49 ◽  
Author(s):  
Brooks B. Ellwood ◽  
Jenaro L. García-Alcalde ◽  
Ahmed El Hassani ◽  
Jindrich Hladil ◽  
Francisco M. Soto ◽  
...  
Keyword(s):  
Czech Republic ◽  
Middle Devonian ◽  
Formal Definition ◽  
The Czech Republic ◽  
Definition Of

scholarly journals Early complex tiering pattern: Upper Ordovician, Barrandian area, the Czech Republic

2021 ◽  
Vol 77 (1) ◽  
pp. 17-35
Author(s):  
Pavel Bokr ◽  
Radek Mikuláš ◽  
Petr Budil ◽  
Petr Kraft
Keyword(s):  
Czech Republic ◽  
Trace Fossils ◽  
Preferred Orientation ◽  
Upper Ordovician ◽  
The Czech Republic ◽  
Shallow Marine ◽  
Fine Grained ◽  
Bedding Planes ◽  
Barrandian Area

Upper Ordovician shallow marine fine-grained sandstones and siltstones exposed in the Loděnice – vinice locality yielded a distinct and well-preserved tiering pattern of trace fossils. The two uppermost tiers are composed mainly of Bifungites and Nereites. Deeper in the sediment, tiers dominated by Thalassinoides, Zoophycos and Teichichnus occur. Most of the succession is completely bioturbated; however, several storm layers enabled study of a well-preserved frozen tiering pattern. Large portions of the bedding planes (ichnologic snapshots) showed a considerable patchiness of intensive surface bioturbation and a preferred orientation of Bifungites. The identified tiering pattern is one of the earliest examples of a well-documented complex tiering of burrows documented in detail.

scholarly journals Trilobite assemblage of Calceola-bearing beds in Acanthopyge Limestone (Choteč formation, Middle Devonian, Eifelian, Prague Basin, the Czech Republic)

2019 ◽  
Vol 75 (1) ◽  
pp. 79-91
Author(s):  
Petr Budil ◽  
Michal Mergl
Keyword(s):  
Czech Republic ◽  
Shallow Water ◽  
Middle Devonian ◽  
Precise Determination ◽  
Rare Occurrence ◽  
The Czech Republic ◽  
Prague Basin ◽  
Generic Composition ◽  
High Dynamic

Abstract The trilobite assemblage of Calceola-bearing beds in the upper part of Acanthopyge Limestone (Choteč Formation, Eifelian) in the Koněprusy area, the Czech Republic, is described. Together with occurrence of Calceola, it indicates absence of significant palaeogeographic barriers restricting the distribution of the Rhenish-Type faunas in the Middle Devonian. The generic composition of the gathered trilobite assemblage somewhat differs from typical Acanthopyge-Phaetonellus assemblage characteristic for the Acanthopyge Limestone facies in possible absence and/or very rare occurrence of Phaetonellus, and only infrequent occurrence of Acanthopyge. Phacopid Chotecops cf. hoseri (Hawle et Corda, 1847) distinctly dominates; all other taxa are rather rare. Important is an occurrence of scutelluids of the Scutellum sensu lato group (preservation of remains does not enable more precise determination) and Longiproetus(?). Trilobite remnants are generally poorly preserved and very fragmented (only minute shields are not affected), which support a high-dynamic, shallow-water original environment.

scholarly journals Alfaites romeo gen. et sp. nov., a new Hyolitha from the Cambrian of Skryje-Týřovice Basin (Czech Republic)

2019 ◽  
Author(s):  
Martin Valent ◽  
Oldřich Fatka ◽  
Ladislav Marek
Keyword(s):  
Czech Republic ◽  
Rare Species ◽  
Internal Surface ◽  
Lower Half ◽  
New Taxon ◽  
The Czech Republic ◽  
Middle Cambrian ◽  
Specific Morphology ◽  
Barrandian Area

The rare hyolith Alfaites romeo gen. et sp. nov. is described from the lower half of the middle Cambrian (Drumian) Buchava Formation of the Skryje-Týřovice Basin in the Barrandian area of the Czech Republic. This new taxon is based on excellently preserved external and internal moulds of three opercula and several conchs collected from carbonate nodules and shale. This rare species has been established at three separate outcrops in the lower part of the Biozone of Paradoxides (Eccaparadoxides) pusillus (Barrande 1846). Morphology of conch and both external and internal surface of operculum are well known. However, specific morphology excludes assignment to any predescribed hyolithid family.

scholarly journals Evolutionary implications of a new transitional blastozoan echinoderm from the middle Cambrian of the Czech Republic

2017 ◽  
Vol 91 (4) ◽  
pp. 672-684 ◽  
Author(s):  
Elise Nardin ◽  
Bertrand Lefebvre ◽  
Oldřich Fatka ◽  
Martina Nohejlová ◽  
Libor Kašička ◽  
...  
Keyword(s):  
Czech Republic ◽  
Body Wall ◽  
New Genus ◽  
The Body ◽  
Associated Fauna ◽  
The Czech Republic ◽  
Middle Cambrian ◽  
New Family ◽  
Barrandian Area ◽  
Imbricate Structure

AbstractThe primitive blastozoanFelbabkacystis luckaen. gen. n. sp. is described from the Drumian Jince Formation, Barrandian area (Czech Republic) from eleven fairly well-preserved specimens. Its unique body plan organization is composed of a relatively long, stalk-like imbricate structure directly connected to the aboral imbricate cup of the test and of an adoral vaulted tessellate test supporting the ambulacral and brachiolar systems. Its bipartite test, called prototheca, highlights the evolution of the body wall among blastozoans.Felbabkacystisn. gen. shows the combination of plesiomorphic (imbricate stalk-like appendage) and derived features (highly domed peristome, elongate epispires). The new genus is interpreted as a transitional form between calyx-bearing and theca-bearing blastozoans, and is attributed to the new family Felbabkacystidae. The lithology, the associated fauna, and the possession of a long stalk suggest thatFelbabkacystiswas probably a low-level suspension feeder living in relatively deep settings.

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