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January 1999 - present
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Publications (51)
Voluminous Miocene silicic volcanism sourced mainly from the extensional Pannonian Basin played a major role in the evolution of Central Paratethys. Here, we identify a widely distributed (> 3150 km ² ) member of the Upper Rhyolite Tuff, called the Dobi Ignimbrite, with a precise sanidine/plagioclase ⁴⁰ Ar/ ³⁹ Ar age of 13.064 ± 0.065 Ma (~ Badenia...
In Hungary, late Oligocene (Chattian, reg. str. Kiscellian and Egerian) plant remains have been preserved in sediments of the Törökbálint (Mány and Kovačov members) and Eger formations. An overview and revision of these late Oligocene macrofloras, both newly excavated and already published, are presented. Nearly a hundred plant taxa are described f...
Cycads are ancient seed plants (gymnosperms) that emerged by the early Permian. Although they were common understory flora and food for dinosaurs in the Mesozoic, their abundance declined markedly in the Cenozoic. Extant cycads persist in restricted populations in tropical and subtropical habitats and, with their conserved morphology, are often cal...
Remains of a fungus with unique morphological characters were found on the leaf cuticle of a fossil leaf preserved in Oligocene deposits from Csolnok, Hungary. Vesicular conidiophores with characteristic, darkly pigmented, incurved vesicles were compared with those of the modern representatives of the anamorphic genus Zygosporium . Based on the fos...
TEXT The royal ferns (Osmundales) form an ancient group of leptosporangiate ferns. Reports of Osmundales based on foliage remains are not rare in the European Neogene floras. Anatomically preserved axes, however, are rarely described in the fossil record of Europe. A permineralized osmundaceous axis was discovered in a mine in the Majkász valley, n...
Fossil plants were discovered by geologists in the dolomite quarry on Strázsa Hill, west of Zsámbék, central Hungary, during December, 2020. The analysis of the plant remains and subsequent field studies suggest that the fossil plants are preserved in sediments of the Mány Member of the Törökbálint Formation and the sandy-clayey layers overlying Me...
Winged seeds were recovered from two sites of the late early Miocene (Karpatian) flora of Magyaregregy, Mecsek Mts, W Hungary. The seeds are assigned to the fossil-genus and species, Mecsekispermum gordonioides Hably and Erdei gen. nov. et sp. nov., and are tentatively related to the family Theaceae. Based on the overall character of the winged see...
This paper presents the reinterpretation of the taxonomic position of fossil epiphyllous callimothalloid fungi belonging to the fossil-genera Callimothallus (hitherto classified to the family Microthyriaceae) and Cribrites (?Microthyriales). These fungi thrived from the Late Cretaceous up to the Holocene. Investigation are based on collected materi...
Spatial vegetation patterns potentially reflect coeval continental climate variations which are also impacted by palaeogeographical settings. Plant functional types (PFTs) and their distribution, frequently applied in ecological studies and biome modelling, serve as a tool for reconstructing palaeovegetation units and ultimately tracing palaeoecolo...
The middle Eocene (Lutetian) fossil plant assemblage from Tatabánya (N Hungary) comprises plant remains preserved mostly as impressions. Remains of angiosperms are represented by Lauraceae (Laurophyllum div. sp., Daphnogene Unger), Rhamnaceae (Ziziphus Miller), Malvaceae s.l. (Byttneriopsis Z.Kvaček et Wilde), Leguminosae, and Palmae, and the occur...
The morphology of the early ontogenetic stages of cycad foliage may help resolve the relationships between extinct to extant cycad lineages. However, prior to this study, fossil evidence of cycad seedlings was not known. We describe a compression fossil of cycad eophylls with co-occurring fully developed leaves of adult specimens from the early Pal...
The late Miocene (Pannonian) flora of Pécs-Danitzpuszta was first studied and published by Hably & Sebe (2016). Recent collections, however, revealed additional foliage remains, some also providing epidermal details. A well-preserved leaf fragment assigned to Laurophyllum based on its micromorphology proves the presence of Lauraceae. A frequent ele...
Hazards and disasters have occurred throughout Earth's History and thus the geological record is an important resource for understanding future hazards and disasters and its Impact. The Earth Science Group (ESG) of the Consortium of European Taxonomic Facilities (CETAF) carried out a “Hazard and Disaster Event Survey” to identify Earth Science coll...
Hazards and disasters have occurred throughout Earth's History and thus the geological record is an important resource for understanding future hazards and disasters. The Earth Science Group (ESG) of the Consortium of European Taxonomic Facilities (CETAF) carried ‡ § | ¶ # ¤ «,» ˄ ˅ ‡ ¦ ‡ © Tilley L et al. This is an open access article distributed...
Modern Zamia L. is the second largest genus among cycads, however reliably identified fossil occurrences of the genus have so far been missing. Previously, fossil “Zamia” species were established in large numbers on the basis of macromorphological similarity of foliage fragments to living Zamia species. However, a reinvestigation of specimens assig...
The Miocene is a relatively recent epoch of the Earth’s history with warmer climate than today, particularly during the Middle Miocene Climatic Optimum (MMCO, approximatively 17-15 Ma). Although the cause of the warming is probably not only attributable to CO 2, but also to changes in orography and configuration of ocean gateways, this time interva...
The Pannonian Basin system provides sufficient data to study local and regional vegetation in the context of palaeoclimate and palaeogeography. The present study attempts to make use of latest results in stratigraphy and track vegetation change throughout the late Miocene. Vegetation layers are reconstructed for five time slices, from 10.8 Ma to 6....
The genus Dioon occupies an important phylogenetic position as sister to the other Zamiaceae. However, its
epidermal morphology is still poorly known. We employed scanning and transmission electron microscopy, confocal
microscopy and light microscopy to examine the epidermal and cuticular morphology of 12 of the 14 currently
recognized species of D...
In the course of the groundworks of the 'Környe Industrial Park' near Tatabánya (N Hungary), fossiliferous beds of the Oligocene Mány Formation were exposed. Sediments comprised abundant plant remains with typical Oligocene species, such as “Rhamnus”
warthae, Alnus oligocaenica accompanied by elements thriving in humid habitats, e.g. the fern Prone...
Premise of research. Leaves of an extinct kind of cycad are recognized from the middle and late Eocene
Clarno Formation of Oregon. Although the pinnately compound leaf is similar in gross form and organization
to some other extant and Cenozoic cycads such as Dioon Lindl., Encephalartos Lehm., and Dioonopsis
Horiuchi et Kimura, it is readily disting...
Fruit endocarps assigned to Mastixia amygdalaeformis provide the first evidence that mastixioid plants were present in the Pannonian Basin. Fossils were collected from the upper Miocene (Tortonian, regional stratigraphy: Pannonian) deposits of the Rudabánya–Vilmos outcrop which is close to the mammal locality yielding the famous remains of Rudapith...
The Miocene is a relatively recent epoch of the Earth's history with
warmer climate than today. The Middle Miocene (Langhian, near 15 Ma) was
particularly warm. Although the cause of the warming is presumably not
only attributable to CO2, but also to the change in orography and
configuration of ocean gateways, this time interval represents an ideal...
Today an effective Gulf Stream accounts for mild, maritime climate in Western Europe and causes significant longitudinal, climatic anomalies when comparing both sides of the North Atlantic, expressed in differentiated biome patterns. E.g. at ca. 40° northern latitude, evergreen broadleaved sclerophyllous woodland of the Northern Mediterranean corre...
The genus Ceratozamia (Cycadales; Zamiaceae) was classically divided into two groups based on gross leaf morphology, but recent molecular phylogenetic analyses has identified three clades. On a larger scale, Ceratozamia appears closely related to Stangeria and to the neotropical genera Microcycas and Zamia. Whole leaf and isolated cuticle specimens...
This paper concentrates on the Early Oligocene palaeoclimate of the southern part of Eastern and Central Europe and gives a detailed climatological analysis, combined with leaf-morphological studies and modelling of the palaeoatmospheric CO2 level using stomatal and delta C-13 data. Climate data are calculated using the Coexistence Approach for Kis...
Reinvestigation of cycadalean leaf and leaflet remains from the Eocene of Hamilton Bay, Alaska, and La Porte, California, using features of epidermal anatomy as well as macromorphology, indicates that these remains, which were formerly assigned to modern cycad genera, conform to the extinct genus Dioonopsis Horiuchi et Kimura first described from t...
This paper concentrates on the Early Oligocene palaeoclimate of the southern part of Eastern and Central Europe and gives a detailed climatological analysis, combined with leaf-morphological studies and modelling of the palaeoatmospheric CO2 level using stomatal and d13 C data. Climate data are calculated using the Coexistence Approach for Kiscelli...
Fossil cycadalean leaves recorded from the Miocene plant assemblage of Soma, western Turkey, are described and assigned to
an extinct genus and species, Pseudodioon akyoli. Leaf macromorphology suggests affinity with members of the Zamiaceae (subfam. Encephalartoideae), particularly with modern
Dioon. Micromorphological features on the other hand i...
• Chapter 1. PaleoParks: Our paleontological heritage protected and conserved in the field worldwide • Chapter 2. The Triassic Guanling fossil Group - A key GeoPark • Chapter 3. The GeoPark of Haute-Provence, France - Geology and palaeontology protected for sustainable development • Chapter 4. The protection and use of the geological and paleontolo...
A remarkable fossil assemblage—fifteen 'in situ' stumps standing at their original position—was explored at the opencast lignite mine at Bükkábrány, N Hungary. The stumps occupying an area of about 50 × 100 m have been preserved in Upper Miocene grey sands overlying the lignite seam. The height of the trunks ranges from 2 up to 5.2 m, their perimet...
The Middle Eocene flora of Csordakút (N Hungary)
The Middle Eocene fossil plant assemblage from Csordakút (N Hungary) comprises plant remains preserved exclusively as impressions. Algae are represented by abundant remains of Characeae, including both vegetative fragments and gyrogonites. Remains of angiosperms comprise Lauraceae ( Daphnogene sp.),...
A survey of the Neogene flora and vegetation pattern of the Pannonian domain based on selected fossil plant assemblages is given. The paper aims to reveal the complex interrelation of tectonic-palaeogeographic evolution, climate, flora and vegetation development through the Neogene of the Pannonian domain. Flora and vegetation patterns are based on...
In the present study, published Miocene mega- and microfloral records compiled from a total of 92 localities in Western Eurasia are analysed with respect to diversity of different plant functional types (PFTs). To study spatial diversity patterns and their evolution three time-intervals are selected corresponding to the Langhian (16.3–13.6 Ma), the...
A survey of the Neogene flora and vegetation pattern of the Pannonian domain based on 18 selected fossil plant assemblages is given. Flora and vegetation patterns are based on well-documented and studied fossil plant assemblages (macrofloras, primarily leaves). A general but slow cooling trend is definitely observable after the Early Miocene as ref...
Five Late Oligocène fossil plant assemblages from Hungary were subjected to a climate analysis adopting the Coexistence Approach. Four climate variables (mean annual temperature, temperature of the coldest and warmest month, mean annual precipitation) were estimated quantitatively. Resultant limits of values for the variables indicate a warm temper...
Leaf macrofossils of an old collection from Csolnok (Dorog Basin, Hungary) were studied by the authors. Based on the regional lithostratigraphy and few remains of molluscs the grey clayey fossiliferous sediments are of Oligocene age. The preservation of the material allowed cuticular preparation in some of the taxa. In addition to the usually emplo...
During the Tertiary, a thick sedimentary sequence was accumulated in the Bresse Basin, including some lignite that was locally excavated. Although the palynology of this lignite is relatively well known, the fossil plant macroremains were only poorly studied. Well-preserved material from a new Upper Pliocene (Reuverian) outcrop is reported herein....
Vegetation and climate reconstructions are given based on some late Middle Miocene (Sarmatian) fossil floras of Hungary, i.e. from the Tokaj Mountains (NE Hungary), Bükk Mountains (NE Hungary) and W Hungary. Except for Sopron-Piusz puszta (coalified dispersed material in deltaic sediments) and Felsotárkány (alluvial sediments), mostly leaf impressi...
A characteristic xeromorphic foliage occurring in the European Tertiary was originally identified as a Proteaceae according
to gross morphology, and compared with Grevillea L. and Lomatia L. (Grevillea kymeana Unger, Lomatites aquensis Saporta). On the basis of venation patterns and phyllotaxy, these elements are now reinterpreted as extinct speci...
The oldest, standing fossil forest in the world preserved as wood occurs at Bükkábrány, Hungary. An open-pit mine working Upper Miocene (Pannonian) lignite revealed sixteen stumps, 1.8 to 3.6 m basal diameter, preserved up to 6 m in height, standing on top of the lignite bed. The trees were preserved by the suddenly rising water level of Lake Panno...
Vizsgálatainkkal arra kívántunk választ adni, hogy - a Belső Kárpáti Térség érintett eocén-oligocén flóra-spektruma alapján kimutatható-e florisztikai és klímaváltozás, és milyen minőségűek ezek a változások. Fosszilis flórák taxonómiai feldolgozása alapján az eocén - kora oligocén flórák jelentős florisztikai hasonlóságot mutatnak, a termofil elem...
A Belső Kárpáti Térség és az ezt körülvevő Alp-Kárpát-Dinári térség terrén kollázsa olyan korai oligocén flóramaradványos rétegeket tartalmaz, amelyekek számos információt hordoznak e területek ősföldrajzi kapcsolatára és klímájára vonatkozóan. Vizsgálataink során számos taxonómiai revíziót végeztünk hazai- és érintett külföldi lelőhelyek flóráin....
