A5027040900- Paleontology and Stratigraphy of Fossils
- Geological Formations and Processes Exploration
- Geology and Paleoclimatology Research
- Paleontology and Evolutionary Biology
- Marine Biology and Ecology Research
- Geological formations and processes
- Evolution and Paleontology Studies
- Geological Studies and Exploration
- Marine and coastal plant biology
- Marine and environmental studies
- Echinoderm biology and ecology
- Geological and Geochemical Analysis
- Geochemistry and Elemental Analysis
- Cephalopods and Marine Biology
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Botany and Plant Ecology Studies
- Morphological variations and asymmetry
- Geochemistry and Geologic Mapping
- Historical and Archaeological Studies
- Ancient and Medieval Archaeology Studies
- Aquatic Invertebrate Ecology and Behavior
- Parasite Biology and Host Interactions
- Mineralogy and Gemology Studies
- Lichen and fungal ecology
Czech Academy of Sciences, Institute of Geology
2015-2024
Charles University
2014-2023
Czech Geological Survey
2011-2020
Shandong University of Science and Technology
2018
China University of Petroleum, Beijing
2018
Czech University of Life Sciences Prague
2012-2014
Université de Lille
2012-2014
Senckenberg Research Institute and Natural History Museum Frankfurt/M
2006-2012
National Museum
2009-2011
Abstract Central Europe consists of a complex mosaic more or less independent terranes with varying tectonometamorphic histories, usually also different lithological compositions and protolith, thus it is reasonable to suppose that the majority these blocks have experienced somewhat palaeogeographical evolution. The present terrane juxtaposition has been interpreted in general as result Variscan collision peri-Gondwanan peri-Baltic derived terranes, Gondwana on one side Baltica and/or...
Abstract The distribution of all known Cambrian echinoderm taxa, encompassing both articulated specimens and taxonomically diagnostic isolated ossicles, is documented for the first time. database described by 2011 comprises 188 species recorded from 65 formations around world. Formations that have yielded echinoderms are unequally distributed in space Only Laurentia West Gondwana provide reasonably complete records at resolution Stage. review biogeographical distributions eight major clades...
The presence of distinct fusellar structure is taken as evidence to include a number fossils from the Middle Cambrian Lower Ordovician North America and Europe with Pterobranchia. dome pterobranchs prosicula planktic graptolites are contrasted given for re-assignment well known dendroid pterobranchs. A non-destructive method described reveal development delicate hemichordate exoskeletons shales. Rhabdotubus robustus n. sp. Czech Republic ? Cephalodiscus Wheeler Shale new
The rare hyolith Alfaites romeo gen. et sp. nov. is described from the lower half of middle Cambrian (Drumian) Buchava Formation Skryje-Týřovice Basin in Barrandian area Czech Republic. This new taxon based on excellently preserved external and internal moulds three opercula several conchs collected carbonate nodules shale. species has been established at separate outcrops part Biozone Paradoxides (Eccaparadoxides) pusillus (Barrande 1846). Morphology conch both surface operculum are well...
Abstract Elegantilites custos sp. n., a rare new hyolithid species is described from the late Middle to early Late Ordovician Dobrotivá Formation of Prague Basin in Barrandian area Czech Republic. The taxon based on excellently preserved external and internal moulds three opercula several conchs, collected siliceous nodules shales. Internal both conch operculum bear small tunnels resembling ichnogenera Pilichnus Arachnostega . Specimens genus have been exclusively North African Gondwana....
All earlier published concepts and stratigraphical subdivisions of the Cambrian succession in Skryje-Týřovice Basin are summarized.Forty-two different proposals for lithostratigraphic subdivision since 1846 discussed plotted seven figures.Here, modified includes four units, Mileč Member, Slapnice Member Skryje all representing lithofacies within newly established Buchava Formation.The whole sedimentary contains a rich record skeletal fauna is correlated with Third unnamed Series System,...
Abstract Several sites of the Middle Cambrian Jince and Buchava formations (Barrandian area, Czech Republic), showing features Burgess Shale-type preservation, yielded diverse ichnofossils adjacent to non- or poorly biomineralized body fossils arthropods, less commonly, acrotretid brachiopods. Based on morphology, Gordia-like, Cochlichnus-like, Planolites-like, Treptichnus-like Pilichnus-like traces occur with "nondescript" bioturbation. Ethologically, Gordia-like Cochlichnus-like are...
Abstract Deuterostomes are a morphologically disparate clade, encompassing the chordates (including vertebrates), hemichordates (the vermiform enteropneusts and colonial tube-dwelling pterobranchs) echinoderms starfish). Although deuterostomes considered monophyletic, inter-relationships between three clades remain highly contentious. Here we report, Yanjiahella biscarpa , bilaterally symmetrical, solitary metazoan from early Cambrian (Fortunian) of China with characteristic echinoderm-like...
Trilobites are among the most iconic of fossils and formed a prominent component marine ecosystems during their 270-million-year-long history from early Cambrian period to end Permian
The Tremadoc to early Llanvirn is the time interval in Ordovician for which a global acritarch distribution pattern can be proposed. It possible differentiate high latitude, cold- temperate-water realm and low warm-water realm. cold-water assemblages, recorded from numerous localities at northern border of Gondwana southern hemisphere, include some diagnostic morphotypes, such as Arbusculidium filamentosum , Arkonia Aureotesta Coryphidium-Vavrdovella Dicrodiacrodium Frankea Striatotheca ....
Previously published biostratigraphical subdivisions of the "middle" Cambrian succession Příbram-Jince Basin in Barrandian area are summarized and a modified subdivision twelve biozones proposed.Nine delimited by first appearance eponymous species; five these interval zones four taxon-range zones.The youngest stratigraphical levels fossiliferous sequence Litavka River Valley, which lack any characteristic taxa, assigned to one assemblage zone that is subdivided into two defined presence...
Isolated sclerites of the genus Wiwaxia are reported from shale interlayers in lower levels middle Cambrian (unnamed 3rd Series Cambrian) Buchava Formation Skryje-Týřovice Basin Czech Republic interpreted as shallow-water sediments.Geographic distribution indicates latitudinal control all occurrences obviously restricted to tropical belt.
The preservation of digestive structures trilobites is extremely rare.Here we describe two new examples from the Upper Ordovician Letná Formation (Prague Basin, Czech Republic), which display remains system.The first specimen, assigned to Selenopeltis buchi (Barrande, 1846), exhibits cavities under posterior part glabella and axis most thoracic segments.These are interpreted as metamerically paired caeca constitute example preserved in order Odontopleurida.The second specimen belongs...
ABSTRACT The presence of six articulated exoskeletons late holaspid specimens the rare harpetid Eoharpes benignensis entombed under a pygidial shield large asaphid trilobite Nobiliasaphus repulsus from Middle Ordovician Dobrotiva Formation Prague Basin, Czech Republic is interpreted as unimodal monotaxic cluster. sheltered preservation trilobites may be explained as; (1) hiding behavior associated with predation pressure; (2) storm disturbance; or (3) molting feeding. It herein suggested...