
Jiřina DaškováNational Museum, Prague, Czech Republic · Natural History Museum
Jiřina Dašková
PhD.
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37
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Introduction
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February 2016 - present
June 2010 - May 2012
Publications
Publications (37)
The vegetation communities of five terrestrial paleoenvironments from the Cretaceous (Cenomanian) Peruc-Korycany Formation of the Bohemian Cretaceous Basin in Czechia. Reconstructions are based on a synthesis of numerous studies of paleobotany, palynology, paleoecology, sedimentology and geochemistry analyses. During the Cenomanian angiosperms were...
Selected articles of the Shenzen Code
This Catalogue is the second revised and expanded edition of the first edition, published in 1997 by J. Kvaček and Straková. The material presented in the original edition was completely nomenclaturally revised and newly photodocumented. This second edition provides as much updated information as it was possible to acquire. The Catalogue includes a...
Mesofossils from the Upper Cretaceous of Lower Silesia are escribed from the Nowogrodziec Member of the Czerna Formation. The vestigated strata are part of the North Sudetic Synclinorium and are of either late Coniacian or early Santonian age. The flora comprises egaspores of lycophytes, conifer and angiosperm mesofossils, and insect-related fossil...
A preliminary revision of the palynological collection of Professor Blanka Pacltová was carried out considering samples from the middle Cenomanian of the Peruc-Korycany Formation, the basal most member of the Bohemian Cretaceous Basin (the Czech Republic). This collection is mainly composed of slides with palynological residues for light microscope...
The ŠO-1 core situated in the NE part of the Pannonian Basin represents a parastratotype of the Badenian stage (regional Central Paratethys stage corresponding to the Langhian and Serravallian). A 150-m-thick succession was deposited between ~ 14.2 and 13.5 Ma (dated by the last common occurrence of Helicosphaera waltrans to the last occurrence of...
Aim
The latitudinal diversity gradient (LDG) is a primary emergent property of the biosphere, yet the cause(s) of this pattern are still debated. Key to many hypotheses is the origins and maintenance of tropical hyperdiversity, and the role of climate in driving low latitude speciation. Here, we analyse patterns of tropical and extratropical floral...
The Boltysh impact structure (Ukraine) has preserved Paleocene–Eocene sediments that provide pollen, dinocysts, remains of plants, gastropods, ostracods, fishes and amphibians, which have all been previously described from that locality. Although fossil records from the locality are known from the second half of the 20th century, attention is being...
New Normapolles reproductive structures are described from several Late Cretaceous stratigraphic horizons of central and western Europe: the Klikov Formation (late Turonian–Santonian), the Aachen Formation (Santonian) and the Walbeck Formation (Maastrichtian). They are assigned to a new genus, Zlivifructus, containing three new species, Zlivifructu...
Type specimens and other material of Comptonia difformis (Sternberg) Berry (Myricaceae) from the Most Basin, North Bohemia, have been re-investigated in order to obtain more complete information on the leaf morphology, epidermal structure and co-occurring fruits. The history, paleoecology and comparisons with similar fossils from Eurasia and extant...
The Melbourne Congress of 2011 authorized a Special Committeeon Registration of Algal and Plant Names (including fossils), whichwas established the following year (Wilson in Taxon 61: 878–879.2012). Its explicit mandate was “to consider what would be involved inregistering algal and plant names (including fossils), using a procedureanalogous to tha...
The Special Committee on Registration of Algal and Plant Names (including fossils) was established at the XVIII International Botanical Congress (IBC) in Melbourne in 2011, its mandate being to consider what would be involved in registering algal and plant names (including fossils), using a procedure analogous to that for fungal names agreed upon i...
Genus Caryanthus with fourteen species represents the most diversified genus in the Normapolles complex. Detailed review of material from Central Europe allowed accurate study of its geographic and stratigraphic distribution. An emended diagnosis of Caryanthus communis Knobloch et Mai, Caryanthus deltoides (Knobloch) Friis, Caryanthus microtriasser...
The Brassington Formation of Derbyshire and Staffordshire in the southern Pennine hills of central England is a succession of sands, gravels and clays preserved within karstic cavities in Carboniferous Limestone. Varicoloured clays and a thin lignite within the uppermost unit (the Kenslow Member) at Kenslow Top Pit near Friden, Derbyshire has yield...
Middle Devonian palynomorphs from southern Moravia: an evidence of rapid change from terrestrial deltaic plain to carbonate platform conditions
Dispersed fossil miospores and acritarchs have been recovered from the subsurface pelites in the Uhřice-1 borehole, southern Moravia. Spores of ferns, sphenopsids and lycopods with rare marine microplankton...
A new genus Konijnenburgia is introduced for fertile, well preserved ferns of the family Matoniaceae, which were previously assigned to the genus Nathorstia Heer. It is based on Konijnenburgia latifolia (Nathorst) comb. nov. from the Upper Cretaceous of Greenland. The lectotype for Konijnenburgia latifolia is designated and its status is discussed....
A three-dimensional reconstruction is provided of the composition, spatial distribution, and structure of a single-aged, Middle Pennsylvanian (Moscovian) peat-forming forest of a high-ash, planar (rheotrophic) mire, buried in situ by volcanic ash and preserved in the Lower Radnice Coal of the Radnice Basin (Czech Republic). The reconstruction is ba...
The precursory mire of the Middle Pennsylvanian (Bolsovian) Lower Radnice Coal was buried in situ by volcanic ash, preserving the taxonomic composition, spatial distribution, vertical stratification, and synecology of this peat-forming ecosystem in extraordinary detail. Plant fossil remains represent the pre-eruption vegetation of the swamp, which...
The study involves a palaeoecological model for both the coals and associated sediments of the Lampertice Member of the Žacléř Formation in the Intra-Sudetic Basin, Czech Republic is proposed. The study area was an intramontane valley drained by a braided to low-sinuosity meandering river with a well developed floodplain. The river probably flowed...
Palaeoecological analysis of a single-age plant assemblage of the middle Westphalian age (Bolsovian = middle Moscovian) preserved in the tuff bed at the base of the Whetstone Horizon in the roof of the Lower Radnice Coal of the Štilec opencast mine in central Bohemia is provided. This plant assemblage represents a peat-forming phytocoenosis buried...
About fifty compression specimens belonging to four species of Polysporia from the Kladno–Rakovník Basin of the central and western Bohemian Carboniferous continental basins and Intra-Sudetic Basin of the Czech Republic were studied macromorphologically and for in situ spores. Their stratigraphic range is from the Bolsovian to the Stephanian B. Pol...
The Matoniaceae is a relict family of Recent ferns
comprising two genera: Matonia and Phanerosorus.
Mesozoic occurrences of the family are much more
diverse. The Matoniaceae are defined by the following
diagnostic characters: radially arranged sporangia, spores
of Matonisporites and a typically pedate arrangement of
fronds. The most important char...
Nathorstia angustifolia Heer from the Lower Cretaceous of Greenland has been revised and the true status of the genus Nathorstia has been verified. Nathorstia Heer is redefined here as a mor-phogenus of fern foliage recalling the family Matoniaceae, but lacking diagnostic characters of this family: sori consisting of radially arranged sporangia hav...
A new fern, Schizaeopsis ekrtii sp. nov., is described from the Peruc-Korycany Formation (Cretaceous, Cenomanian) of the Czech Republic based on the morphology of its leaves and reproductive structures. It is compared to the similar, previously published fossil taxa. It is characterised by finely segmented, 4–5 times divided fronds. Each terminal s...
During the Mesozoic Era, gingkoaleans comprised a diverse and widespread group. Here we describe ginkgoalean fossils in their facies context from the Late Cretaceous (Cenomanian) Peruc-Korycany Formation of the Czech Republic and present a reconstruction of tree architecture and ecology. Newly described in this study is the ovuliferous reproductive...
A new lycopsid family Kladnostrobaceae is proposed, based on the type of sporangia, their attachment by a pedicel and the type of reticulate spores enclosed. All these characteristics distinguish the Kladnostrobaceae from all other lycopsid families. A new lycopsid genus Kladnostrobus nov. gen., consisting of two new species Kladnostrobus clealii n...
The sterile holotype of Polypodium fertile MacGinitie was re-examined together with other fertile type specimens from the Miocene Weaverville Formation at Redding Creek (California, western USA). In its leaf morphology, venation and in situ spores Polypodium fertile matches the extant Polypodium vulgare complex. The spores belong to the verrucose t...
Pollen grains of Alnipollenites verus type were isolated from male catkins found in the Oligo-cene deposits at Bechlejovice, Czech Republic. This record supported the opinion that Alnitipollenites verus (Potonié) Potonié is synonymous with Alnus kefersteinii (Goeppert) Unger.