scholarly journals The Eocene flora of Tatabánya “marl-mine” (N Hungary)

2020 ◽  
Vol 100 (3) ◽  
pp. 629-645 ◽  
Author(s):  
Boglárka Erdei ◽  
Volker Wilde

Abstract 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 occurrence of other families, i.e., Dioscoreaceae, Myrtaceae, Fagaceae, Anacardiaceae, Berberidaceae, Juglandaceae, and Theaceae, is uncertain. The scarcity of gymnosperms is a character similar to the coeval floras of Csordakút (N Hungary) and Girbou in Romania. The presence of Ziziphus ziziphoides (Unger) Weyland, high number of linear shaped leaves with entire margin and coriaceous texture (Lauraceae vel Fagaceae), and small-leaved Leguminosae suggests a “subhumid” character of the vegetation, which is recognisable also in early Palaeogene floras of eastern Central and Southeastern Europe, e.g., the Tard Clay floras in Hungary and floras of Serbia/Macedonia. In contrast, the Eocene floras from Central/Western Europe are indicative of a generally non-xerophytic character, e.g., Staré Sedlo in Bohemia, Messel, Geiseltal, and the Weisselster Basin floras in Germany. A frost-free climate with high mean annual temperatures similar to that estimated for coeval European floras may also be inferred for the Tatabánya flora.

2009 ◽  
Vol 60 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Boglárka Erdei ◽  
László Rákosi

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 (Daphnogenesp.), Fagaceae (cf.Eotrigonobalanus furcinervis), Ulmaceae (Cedrelospermumdiv. sp.), Myricaceae (Myricasp.,Comptoniadiv. sp.), Leguminosae (leaves and fruit), Rhamnaceae (?Zizyphus zizyphoides), Elaeocarpaceae (Sloanea nimrodi, Sloaneasp. fruit), Smilacaceae (Smilaxdiv. sp.). The absence of gymnosperms is indicative of a floristic similarity to the coeval floras of Tatabánya (N Hungary) and Girbou in Romania.Sloanea nimrodi(Ettingshausen) Kvaček & Hably, a new element for the Hungarian fossil record indicates a floristic relation to the Late Eocene flora of Kučlin (Bohemia).


2018 ◽  
Vol 74 (3-4) ◽  
pp. 292-316
Author(s):  
Zlatko Kvaček ◽  
Vasilis Teodoridis ◽  
Miroslav Radoň

The Oligocene palaeontological locality on Matrý Hill near Sebuzín in the České středohoří Mts., North Bohemia, belongs to the Děčín Formation and is dated to 30.8-24.7 Ma according to the regional stratigraphy. It has yielded, in addition to insects from the Heteroptera group, a fossil bee Apis petrefacta and palaeobatrachid frogs, also numerous plant remains. Their recovery began in 1996. The plant fossil assemblage consists mostly of leaf impressions, occasionally accompanied by casts or impressions of fruits. Noteworthy are records of a fern Woodwardia muensteriana, conifers Pinus cf. rigios, P. cf. hepios, Calocedrus suleticensis, Tetraclinis salicornioides, Torreya bilinica, cf. Cephalotaxus parvifolia and numerous angiosperms, e.g. Liriodendron haueri, Daphnogene cinnamomifolia, Platanus neptuni, Cercidiphyllum crenatum, Sloanea artocarpites, Ulmus pyramidalis, Celtis pirskenbergensis, Carya fragiliformis, C. quadrangula, Betula brongniartii, B. dryadum, Alnus rhenana, A. cf. kefersteinii, Carpinus grandis, Ostrya atlantidis, Acer crenatifolium, A. cf. palaeosaccharinum, A. integrilobum and Craigia bronnii. Several angiosperm foliage specimens of both monocots and dicots have not yet been identified to a particular genus and species. The fossil plant assemblage at Matrý corresponds to two vegetation types, i.e. a zonal riparian forest and zonal mixed mesophytic forest, as corroborated by the Integrated Plant Record vegetation analysis. The vegetation thrived under a humid climate, characterized by average values of MAT (13.4 °C), WMMT (23.8 °C), CMMT (3.6 °C) and MAP (1,117 mm). The Matry fossil flora is similar in composition to the flora of Žichov from the same Oligocene Děčín Formation in the České středohoří Mts.


2019 ◽  
Vol 75 (2) ◽  
pp. 281-288
Author(s):  
Steven R. Manchester ◽  
Terry A. Lott

Abstract Shales of the early middle Eocene Parachute Creek Member of the Green River Formation in Utah, western USA, have yielded a large number of fossil plant remains with abundant Platanaceae, Salicaceae, and Ulmaceae, but many of the constituents of this flora remain indeterminate. Here we present a new fruit type based on distinctive sedimentary molds investigated by reflected light and μCT scanning. The structures are oblate woody fruits, about 18–26 mm wide but only 2–4 mm high, but partially flattened by compression within the sediment. In transverse view they are rounded-polygonal, with 5–6 sides. In lateral view the locule is dome-shaped with 7 to 11 obpyriform grooves radiating from the center of the basal wall. Three-dimensional imaging and both physical and digital sections indicate that the fruits were circumscissile capsules. Although analogous fruits occur in the Lecythidaceae A.Rich., Bonanzacarpum sprungerorum sp. nov. fruits are much smaller and lack the prominent woody pedicel and corresponding basal scar that characterizes that family. Hence, the systematic position of B. sprungerorum remains uncertain.


2010 ◽  
Vol 37 (2-3) ◽  
pp. 161-213 ◽  
Author(s):  
Constantin Iordachi

This introductory essay provides a first, much needed comprehensive overview of the recent scholarship on fascism and the radical right in East Central and Southeastern Europe in local and international historiography. Its aim is to identify a new research agenda for studying fascism comparatively, potentially contributing to the fine-tuning or substantial modification of the existing explanatory paradigms. It is argued that comparative research on fascism and the radical right in these regions should be set on new theoretical and methodological foundations, as part of an effort toward greater interaction and convergence between scholarly research traditions in Eastern and Western Europe. My endeavor is based on the assumption that the study of fascist movements and regimes in East Central and Southeastern Europe is essential to the more general scholarly effort to understand radical politics in interwar Europe; without it, comparative research results remain partial and incomplete. Yet, this analytical effort does not simply mean an extension of the existing theoretical framework of generic fascism to previously uncharted regions. Regional explorations of fascism might function as a laboratory for further methodological innovation and as a field of experimentation and interaction of scholars from various disciplines and national historiographic traditions. They can potentially lead to the rejuvenation of fascist studies by renewing their thematic scope and by redirecting research from the prevailing Weberian ideal-type methodology fixated on the fascist “ideological minimum” to new comparative-historical analyses focusing on the triad ideology-movements-regimes. This novel agenda of research prompts scholars to rethink their units of analysis, and to renounce teleological comparative perspectives still prevalent in Cold War-type scholarship which takes Western Europe as a measuring stick and normatively evaluates other historical case studies only by means of negative comparisons (e.g.: what was missing, or what “went wrong” in non-Western regions). Instead of treating fascist movements and regimes in these regions as carbon copies of their more “genuine” Western counterparts, scholars should rather explore multiple laboratories for the elaboration of fascist ideology in interwar politics and the transfer of illiberal political ideas and practices over spatial or temporal borders, resulting in radical political experiments in East and West alike.


1974 ◽  
Vol 11 (3) ◽  
pp. 409-421 ◽  
Author(s):  
Marian Kuc

New fossil taxa (Ditrichites fylesi, Muscites maycocki, M. ritchiei, Palaeohypnum jovet-asti and P. steerei); unnamed moss and moss-like fossils, detrital fragments of various plant tissues, and paleobotanical evidence of the bisaccate zone are described from the Middle Eocene Allenby Formation near Princeton, British Columbia. These remains occur in laminated, tuffaceous, silty and pyroclastic shale, deposited under lacustrine conditions.Detailed examination of the various laminae indicates that beds of white colour and composed of coarser silt grains are poor in fossils and could be related to periods of decreasing bioproduction; less silty and darker coloured beds are rich in macro- and microfossils and could be related to periods of extensive bioproduction. The rock features, lamination, and distribution of macrofossils indicate the slow and undisturbed accumulation of plant remains on a lake bottom.


1880 ◽  
Vol 30 (200-205) ◽  
pp. 560-562

On his return from his “searching expedition” to Arctic America of the year 1848, Sir John Richardson brought to London a box of fossil plant-remains, which he had collected on the Mackenzie River, between Fort Norman and the Great Bear Lake River, in latitude 65° N. The deposits from whence the specimens were obtained had been discovered by Sir Alexander Mackenzie, in 1785, and visited by Sir J. Franklin and Sir John (then Dr.) Richardson in 1825 ; but it was not until his second visit that Richardson was able to bring away speci­mens (Journal, vol. i, p. 186).


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