scholarly journals Giant pelobatid fossil larva from the middle Miocene of Bulgaria

2021 ◽  
Vol 43 (3) ◽  
pp. 29-42
Author(s):  
Vladislav Vergilov ◽  
Nikolay Tzankov
Keyword(s):  
Late Pleistocene ◽  
Middle Miocene ◽  
The Balkans ◽  
Total Length ◽  
Anuran Species

So far, in Bulgaria several fossils of extinct anuran species have been found, but all seem doubtful. Only two pelobatid remains have been found from the Balkans and the regions - younger species (Late Pleistocene) of the genus Pelobates from Serbia and Miocene Pelobates sp. from Turkey. The fossil in the current study represents a larva of the genus Eopelobates, the first discovery of this genus not only for Bulgaria but for the Balkans as well. This pelobatid larva is gigantic, more than 200 mm in total length. The fossil is found in a diatomitian complex from the middle Miocene.

Late Pleistocene Rodent Dispersal in The Balkans

2004 ◽  
pp. 135-145
Author(s):  
Huw I. Griffiths ◽  
Boris Kryštufek ◽  
Jane M. Reed
Keyword(s):  
Late Pleistocene ◽  
The Balkans

scholarly journals The First Appearance of Hucho (Salmonidae) in the Fossil Record of Eastern Europe

2015 ◽  
Vol 49 (5) ◽  
pp. 413-420 ◽  
Author(s):  
О. М. Kovalchuk
Keyword(s):  
Eastern Europe ◽  
Late Pleistocene ◽  
Late Miocene ◽  
Fossil Record ◽  
Middle Miocene ◽  
Fossil Remains ◽  
Extant Genus ◽  
Geological Past ◽  
Late Neogene ◽  
Southern Ukraine

Until now, fossil remains of Hucho Gunther, 1866 are known only from the Oligocene - middle Miocene strata of Baikal Russia, and from the late Pleistocene of Germany. New specimens, now identified as Hucho sp., come from the late Miocene of southern Ukraine. Numerous fragments of opercular bones and jaw teeth, morphologically similar to those in the extant genus Hucho, were found in Kubanka 2, Cherevychnoe 3, Tretya Krucha localities and dated by the late Sarmatian - early Maeotian (10-8 Ma). Th ese remains document the first appearance of huchen in geological past of Europe, filling in gap in distribution of this genus during the late Neogene, and throw light upon its biogeographical history.

scholarly journals New late Oligocene rodent faunas from the Pannonian basin

2021 ◽  
Author(s):  
Andrew A. van de Weerd ◽  
Hans de Bruijn ◽  
Wilma Wessels ◽  
Zoran Marković
Keyword(s):  
Western Europe ◽  
Middle Miocene ◽  
Pannonian Basin ◽  
Published Data ◽  
Time Interval ◽  
Late Oligocene ◽  
New Genus And Species ◽  
The Balkans ◽  
Late Middle Miocene ◽  
Minimum Age

AbstractThe rodent associations from the late Oligocene deposits of Ugljevik and Paragovo in the Pannonian basin are described. Pannoniamys paragovensis, a new genus and species of Spalacidae, is defined. The published data from a third late Oligocene locality in the area (Banovići) is included in the discussion of the changes in community structure through the time-interval studied. Although the composition of the rodent faunas studied differs, the dominating cricetid genus in all three associations is Deperetomys, a genus that appears in western Europe during the late middle Miocene. While the late Oligocene rodent record of central and southwestern Europe is characterised by endemic development, the regime in the Balkans seems to have been one of multiple immigrations and replacements. The late Oligocene age of the rodent fauna from Ugljevik estimated at about 26 Ma, provides a minimum age for the start of rifting in the Pannonian basin, some 6 Ma earlier than previously documented.

Late Pleistocene glacial chronologies in the Balkans: new 36Cl exposure-age dating from Montenegro and Greece

2020 ◽  
Author(s):  
James Allard ◽  
Philip Hughes ◽  
Jamie Woodward ◽  
David Fink ◽  
Krista Simon ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
Climatic Conditions ◽  
Age Dating ◽  
Middle Pleistocene ◽  
Mountain Ranges ◽  
The Balkans ◽  
Ice Caps ◽  
The University ◽  
University Of Manchester ◽  
Exposure Ages

<p>The timing and extent of mountain glaciation during the Late Pleistocene shows considerable variability around the world. Identifying the nature and timing of glaciation is important for understanding landscape evolution and changing climatic conditions (precipitation and temperature). In the Balkans, glaciers were actually larger during the Middle Pleistocene when large ice caps formed in several mountain ranges including the Dinaric Alps, Montenegro, and the Pindus Mountains, Greece. Glaciations younger than Marine Isotope Stage 6 were characterised by smaller ice masses with glaciers mainly restricted to the highest mountains. The behaviour of Late Pleistocene glaciers in this region influenced the timing of sediment and meltwater delivery to river systems; the migration of modern humans across Europe; and the dynamics of biological refugia. However, dating control is limited for Late Pleistocene glaciers in the Balkans.</p><p>Here we report new in-situ <sup>36</sup>Cl terrestrial cosmogenic nuclide exposure ages from moraine boulders sampled in the Velika Kalica valley, in the Durmitor massif, Montenegro. This valley was targeted because it contains the Debeli Namet glacier - the last remaining glacier in Montenegro. We have sampled 25 limestone boulders from 5 moraines situated down-valley of the current glacier at altitudes between 1650–2000 m. AgCl targets for <sup>36</sup>Cl assay were prepared at The University of Manchester and <sup>36</sup>Cl concentrations were measured on the SIRIUS 6MV accelerator at the Centre for Accelerator Science at the Australian Nuclear Science and Technology Organisation. At the last local glacial maximum, the Debeli Namet glacier extended almost 3 km beyond its current position. These <sup>36</sup>Cl analyses are part of a wider regional Mediterranean study, totalling >50 new exposure ages, which also includes Mount Tymphi in the Pindus Mountains, NW Greece. The project will address both a significant spatial and temporal gap in Mediterranean glacial chronologies by targeting the hitherto undated Late Pleistocene glacial record. The work in Montenegro will also shed light on the nature of Holocene glaciation in the Balkans.</p>

Radiolarian Biostratigraphy from Middle Miocene to Late Pleistocene in the Japan Sea

2017 ◽  
Vol 21 (4) ◽  
pp. 397-421 ◽  
Author(s):  
Shin-Ichi Kamikuri ◽  
Takuya Itaki ◽  
Isao Motoyama ◽  
Kenji M. Matsuzaki
Keyword(s):  
Late Pleistocene ◽  
Middle Miocene ◽  
Japan Sea ◽  
The Japan Sea ◽  
Radiolarian Biostratigraphy

Magura Cave, Bulgaria: A multidisciplinary study of Late Pleistocene human palaeoenvironment in the Balkans

2016 ◽  
Vol 415 ◽  
pp. 86-108 ◽  
Author(s):  
Stefanka Ivanova ◽  
Maria Gurova ◽  
Nikolai Spassov ◽  
Latinka Hristova ◽  
Nikolay Tzankov ◽  
...  
Keyword(s):  
Late Pleistocene ◽  
The Balkans ◽  
Multidisciplinary Study

scholarly journals Late Pleistocene and Earliest Holocene avifauna from the Loutra Almopias Cave (Macedonia, Greece)

2019 ◽  
Vol 40 ◽  
pp. 1-31
Author(s):  
Zlatozar Boev ◽  
Evangelia Tsoukala
Keyword(s):  
Late Pleistocene ◽  
Habitat Preferences ◽  
Bird Species ◽  
Columba Livia ◽  
Bubo Bubo ◽  
Loxia Curvirostra ◽  
Perdix Perdix ◽  
The Balkans ◽  
Bonasa Bonasia ◽  
Rocky Habitats

The bird fauna of the Loutra Almopias Cave comprised eight orders, 22 families, 41 genera and at least 47 species (68 different taxa) established based on 551 avian bone finds. The Loutra Almopias Cave is a new (26th) Pleistocene avian locality in Greece. About 92.5% of the material was dated to the Earliest Holocene (11.230 ± 110 y. BP), coming from the upper chamber of the cave, whereas an older assemblage was dated to the Late Pleistocene (37,880 y. ± 370/360 BP), coming from the floor chambers of the cave. Here is provided the first fossil record of 13 species in Greece (Buteo lagopus, Francolinus francolinus, Lagopus lagopus, Bonasa bonasia, Dryocopus martius, Lulula arborea, Bombicylla garrulus, Cinclus cinclus, Sylvia borin, Carduelis carduelis, Loxia curvirostra, Plectrophenax nivalis, and Emberiza cirlus). Three genera (Francolinus, Anthus and Riparia/Ptyonoprogne) were established for the first time in Pleistocene deposits in the country. The record of Fr. francolinus was the first one for the Balkans and Eastern Europe. At both sites inside the cave, regardless of their different age, the habitat preferences of the identified bird species indicated that the surrounding paleoenvironment included both grassy openlands (dominated by gramineans) and woodland (coniferous or mixed woods). In addition, rocky habitats were represented in the surroundings of the locality. The presence of small species of Perdicinae (26%) and corvids (34%) indicated the former existence and prevelance of open grassy fields and rocky environments. The Alpine chough was the most abundant species at both localities. In the Earliest Holocene it comprised 29.5%, whereas in the Late Pleistocene it reached 25.6% of the material. Such a representation suggests a natural non-human accumulation of the material, probably due to the feeding behavior of Bubo bubo. The Late Pleistocene record (19 taxa; 41 finds) included Falco sp. cf. F. peregrinus, Perdix perdix, Perdix sp., Alectoris graeca, Alectoris sp., Lagopus cf. lagopus, cf. Bonasa bonasia, Columba livia, Columba palumbus, Bubo bubo, Melanocorhypha calandra, Anthus sp., Turdus sp., Pica pica, Pyrrhocorax graculus, Loxia curvirostra, Coccothraustes coccothraustes, Pyrrhula pyrrhula, Fringillidae gen. indet., non-Passeriformes indet. and also suggests the site has been used by the eagle owl. The climate probably used to be drier and cooler than in the Earliest Holocene. The record of 17 woodland species from the Earliest Holocene that were absent in the Late Pleistocene could be explained by the more humid and moderate climate at the very end of the Pleistocene.

scholarly journals Determining the gait of Miocene, Pliocene, and Pleistocene horses from fossilized trackways

Fossil Record ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 151-169
Author(s):  
Alan Vincelette
Keyword(s):  
Late Pleistocene ◽  
Middle Miocene ◽  
Visual Features ◽  
The Past ◽  
Over Time ◽  
Major Conformation

Abstract. Much work has been done on the study of vertebrate gaits over the past several decades and efforts undertaken to apply this to fossil tracks, especially dinosaurs and mammals such as cats, dogs, camels, and horses. This work seeks to expand upon such studies and in particular to study footprints laid down in sand by modern horses and apply such studies to determine the gaits of fossil horse trackways. It thus builds upon the work of Renders (1984a, b) and Kienapfel et al. (2014) and suggests additional measurements that can be taken on horse footprints. In this study the footprints left in the sand by 15 horses of various breeds with various gaits were videotaped, photographed, described, and measured in order to determine characteristics useful in distinguishing gaits. These results were then applied to two new sets of fossil footprints, those of the middle Miocene merychippine horse Scaphohippus intermontanus that I personally examined and measured and those from the late Pleistocene horse Equus conversidens, previously illustrated and described in the literature (McNeil et al., 2007). The latter horse exhibits a fast gallop of around 9.4 m/s, but it is the former whose footprints are quite unique. The quantitative and visual features of these prints are suggestive of a medium-fast gait involving apparent “understepping” of diagonal couplets and hind feet that overlap the centerline. The gait that most closely matches the footprints of Scaphohippus is the “artificial” gait of a slow rack or tölt, or pace, around 1.9 m/s, though an atypical trot of a horse with major conformation issues or which is weaving (swaying) from side to side is a less likely possibility. This intimates, along with the earlier study of Renders (1984a, b), who found the artificial gait of the running walk displayed by Pliocene hipparionine horses, that ancient horses possessed a much greater variety of gaits than modern horses and that over time they lost these abilities with the exception of certain gaited breeds.

scholarly journals The first data on the late pleistocene ostracodes of the Kuray depression (Gorny Altai)

2019 ◽  
Vol 486 (4) ◽  
pp. 451-454
Author(s):  
L. B. Khazin ◽  
A. R. Agatova ◽  
R. K. Nepop ◽  
B. N. Shurygin
Keyword(s):  
Late Pleistocene ◽  
Middle Miocene ◽  
Deciduous Trees ◽  
Deciduous Species ◽  
Mixed Forests ◽  
Lena River ◽  
Gorny Altai ◽  
Field Works ◽  
Trees And Shrubs ◽  
Lena River Delta

During the field works in the summer of 2018, in the Lena River delta on the Sardakh-Sisse Island, prints of leaf flora belonging to species of broad and small-leaved deciduous trees were found. The prints found by us are confined to the layer of ferruginous sandstones at the base of the section. The following taxa established: Platanus sp., Alnus sp., Fagus sp., Salix sp. In addition, a fossilized fruit belonging to Magnolia sp. The findings allow to conclude that there are mixed forests in the early-middle Miocene in this region, consisting of coniferous, small- and broad-leaved deciduous species of trees and shrubs.

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