scholarly journals Bessarabian (Tortonian, Late Miocene) fish otoliths from a transitional freshwater-brackish environment of Mykhailivka, Southern Ukraine

10.26879/769 ◽  
2017 ◽  
Author(s):  
A Bratishko ◽  
O Kovalchuk ◽  
W Schwarzhans
Keyword(s):  
Late Miocene ◽  
Southern Ukraine ◽  
Fish Otoliths ◽  
Brackish Environment

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 Incremental growth and mineralogy of Pannonian (Late Miocene) sciaenid otoliths: paleoecological implications

2012 ◽  
Vol 63 (2) ◽  
pp. 175-178 ◽  
Author(s):  
Zoltán Kern ◽  
Miklós Kázmér ◽  
Mariann Bosnakoff ◽  
Tamás Váczi ◽  
Bernadett Bajnóczi ◽  
...  
Keyword(s):  
Late Miocene ◽  
Structural Characteristics ◽  
Body Dimensions ◽  
Lake Pannon ◽  
The Past ◽  
Microchemical Analysis ◽  
Analytical Results ◽  
Incremental Growth ◽  
Sciaenid Fish ◽  
Fish Otoliths

Incremental growth and mineralogy of Pannonian (Late Miocene) sciaenid otoliths: paleoecological implicationsOntogenetic age and body dimensions were studied on three extremely well-preserved sciaenid fish otoliths from sublittoral marls of Lake Pannon from Doba, Bakony Mts, Hungary. Macroscopic and microscopic observations offered clear evidence for the preservation of the genuine structural characteristics, for instance the bipartite incremental features. Ontogenetic ages were assigned for the three specimens as 16, 7 and 6 years by counting the annuli of the sagittae. Analytical results prove that the original aragonitic mineralogy has been preserved making them, and probably other Late Miocene teleost fossils, suitable for future microchemical analysis to reconstruct the past physicochemical environment.

scholarly journals Dynamics of the freshwater ichthyofauna diversity in the Late Miocene of the Southern Ukraine

2015 ◽  
pp. 175-180 ◽  
Author(s):  
O.M. Kovalchuk ◽  
◽  
I.G. Emelyanov ◽  
Keyword(s):  
Late Miocene ◽  
Southern Ukraine

scholarly journals New remains of roach Rutilus sp. (Cyprinidae: Leuciscinae) from Late Miocene sediments of Southern Ukraine

2013 ◽  
Vol 7 (3) ◽  
pp. 217-224
Author(s):  
О. М. Kovalchuk ◽  
Keyword(s):  
Late Miocene ◽  
Southern Ukraine

Late Miocene fish otoliths from the Colombacci Formation (Northern Apennines, Italy): implications for the Messinian ‘Lago-mare’ event

2006 ◽  
Vol 41 (5) ◽  
pp. 537-555 ◽  
Author(s):  
Giorgio Carnevale ◽  
Doriano Caputo ◽  
Walter Landini
Keyword(s):  
Late Miocene ◽  
Northern Apennines ◽  
Fish Otoliths

Sturgeons (Acipenseridae) from the Late Miocene of Ukraine, with a discussion of materials associated with Widhalm’s (1886) nomen nudum, †Acipenser euhuso

Zootaxa ◽  
2021 ◽  
Vol 5057 (3) ◽  
pp. 85-101
Author(s):  
ERIC J. HILTON ◽  
OLEKSANDR KOVALCHUK ◽  
NATALIA PODOPLELOVA
Keyword(s):  
Late Cretaceous ◽  
Late Miocene ◽  
Fossil Record ◽  
New Taxon ◽  
Nomen Nudum ◽  
Characteristic Surface ◽  
The Family ◽  
Surface Ornamentation ◽  
Dermal Bones ◽  
Southern Ukraine

The fossil record of the family Acipenseridae (sturgeons) extends to the Late Cretaceous (c. 85 MY), with a ghost lineage extending to approximately 120 MY when the first members of the family Polyodontidae are known. Much of the fossil record of Acipenseridae is formed by isolated and fragmentary dermal bones, which bear characteristic surface ornamentation. In this paper, we report on a collection of fossil sturgeons from the Upper Miocene deposits of southern Ukraine. These specimens include those used by Widhalm to establish †Acipenser euhuso, which is a nomen nudum. While we do not establish a new taxon for these specimens, the morphological variation of those elements that are preserved does suggest the presence of several species represented in this fauna.  

scholarly journals Bony Fishes from the Late Miocene and Pliocene Strata of Popovo Locality (Ukraine): Taxonomic Changes and Their Palaeoecological Explanation

2014 ◽  
Vol 48 (2) ◽  
pp. 129-136
Author(s):  
О. М. Kovalchuk
Keyword(s):  
Late Miocene ◽  
Hydrological Regime ◽  
Quantitative Composition ◽  
Taxonomic Richness ◽  
Geological Time ◽  
Qualitative And Quantitative ◽  
Bony Fishes ◽  
Fossil Fish ◽  
Taxonomic Changes ◽  
Southern Ukraine

Abstract Bony Fishes from the Late Miocene and Pliocene Strata of Popovo Locality (Ukraine): Taxonomic Changes and Their Palaeoecological Explanation. Kovalchuk, О. М. - Th e present paper deals with results of studying of the fossil fish remnants from the Late Miocene and Pliocene strata of Popovo locality (Southern Ukraine). Our aim was to show local taxonomic changes in freshwater fish communities through-out the specified range of geological time. Twenty seven species of the 20 genera, 6 families (Cyprinidae, Cobitidae, Siluridae, Salmonidae, Esocidae, Percidae) and 5 orders (Cypriniformes, Siluriformes, Salmoniformes, Esociformes, Perciformes) were identified from the 4 heterochronous bonyferous layers. Basing on taxonomic richness, diversity, complexity and similarity of communities, it can be assumed, that changes in their qualitative and quantitative composition were caused by hydrological regime transformation, palaeogeographical alterations and also local taphonomic features.

scholarly journals A New Extinct Species Of Pikeperch Sander Svetovidovi (Teleostei, Percidae) From The Late Miocene Of Southern Ukraine

2015 ◽  
Vol 49 (4) ◽  
pp. 317-324 ◽  
Author(s):  
O. M. Kovalchuk
Keyword(s):  
New Species ◽  
Late Miocene ◽  
Lateral Condyle ◽  
Extinct Species ◽  
Upper Miocene ◽  
Inferior Edge ◽  
A New Species ◽  
Southern Ukraine

Abstract A new species of pikeperch from the Upper Miocene strata of Ukraine (Egorovka 2 locality, MN 12) is described in the paper. Extinct species Sander svetovidovi sp. n. differs from the Miocene and recent taxa of the genus Sander by the configuration of the quadrate bone, form and sizes of the lateral condyle and also presence of additional double crista on the anterior inferior edge of quadratum.

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