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

Andriy Bratishko; Oleksandr Kovalchuk; Werner Schwarzhans

doi:10.26879/769

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

Andriy Bratishko, Oleksandr Kovalchuk, Werner Schwarzhans

5 Citations (Scopus)

53 Downloads (Pure)

Abstract

The Mykhailivka sedimentary section in southern Ukraine of middle (Bessarabian) to late (Khersonian) Sarmatian s.l. age is well known for its rich vertebrate finds in alternating marginal marine to estuarine and lacustrine environments. Here we describe fish otoliths obtained from sediments from a supposedly estuarine environment that had already yielded fossil fish bones and teeth described earlier. The otolith association is dominated by three species of gobiids, which are all related to the endemic extant Ponto-Caspian gobiid fauna. One species - Neogobius bettinae n. sp. - is described here. Rare associated species are Morone cf. nobilis, so far only known from the North Sea Basin, and a sciaenid. All otolith-based species represent euryhaline groups of fishes that are known today to commonly migrate from marine into brackish waters or are adapted to brackish and freshwater environments.

Original language	English
Article number	44A
Journal	Palaeontologia Electronica
Volume	20
Issue number	3
Number of pages	13
ISSN	1094-8074
DOIs	https://doi.org/10.26879/769
Publication status	Published - 2017

Keywords

Bessarabian
Bony fishes
Eastern paratethys
Miocene
New species
Ukraine

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Bessarabian (Tortonian, Late Miocene) fish otoliths from a transitional freshwater-brackish environment of Mykhailivka, Southern UkraineFinal published version, 2.76 MBLicence: CC BY

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

abstract = "The Mykhailivka sedimentary section in southern Ukraine of middle (Bessarabian) to late (Khersonian) Sarmatian s.l. age is well known for its rich vertebrate finds in alternating marginal marine to estuarine and lacustrine environments. Here we describe fish otoliths obtained from sediments from a supposedly estuarine environment that had already yielded fossil fish bones and teeth described earlier. The otolith association is dominated by three species of gobiids, which are all related to the endemic extant Ponto-Caspian gobiid fauna. One species - Neogobius bettinae n. sp. - is described here. Rare associated species are Morone cf. nobilis, so far only known from the North Sea Basin, and a sciaenid. All otolith-based species represent euryhaline groups of fishes that are known today to commonly migrate from marine into brackish waters or are adapted to brackish and freshwater environments.",

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T1 - Bessarabian (Tortonian, Late Miocene) fish otoliths from a transitional freshwater-brackish environment of Mykhailivka, Southern Ukraine

AU - Bratishko, Andriy

AU - Kovalchuk, Oleksandr

AU - Schwarzhans, Werner

PY - 2017

Y1 - 2017

N2 - The Mykhailivka sedimentary section in southern Ukraine of middle (Bessarabian) to late (Khersonian) Sarmatian s.l. age is well known for its rich vertebrate finds in alternating marginal marine to estuarine and lacustrine environments. Here we describe fish otoliths obtained from sediments from a supposedly estuarine environment that had already yielded fossil fish bones and teeth described earlier. The otolith association is dominated by three species of gobiids, which are all related to the endemic extant Ponto-Caspian gobiid fauna. One species - Neogobius bettinae n. sp. - is described here. Rare associated species are Morone cf. nobilis, so far only known from the North Sea Basin, and a sciaenid. All otolith-based species represent euryhaline groups of fishes that are known today to commonly migrate from marine into brackish waters or are adapted to brackish and freshwater environments.

AB - The Mykhailivka sedimentary section in southern Ukraine of middle (Bessarabian) to late (Khersonian) Sarmatian s.l. age is well known for its rich vertebrate finds in alternating marginal marine to estuarine and lacustrine environments. Here we describe fish otoliths obtained from sediments from a supposedly estuarine environment that had already yielded fossil fish bones and teeth described earlier. The otolith association is dominated by three species of gobiids, which are all related to the endemic extant Ponto-Caspian gobiid fauna. One species - Neogobius bettinae n. sp. - is described here. Rare associated species are Morone cf. nobilis, so far only known from the North Sea Basin, and a sciaenid. All otolith-based species represent euryhaline groups of fishes that are known today to commonly migrate from marine into brackish waters or are adapted to brackish and freshwater environments.

KW - Bessarabian

KW - Bony fishes

KW - Eastern paratethys

KW - Miocene

KW - New species

KW - Ukraine

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DO - 10.26879/769

M3 - Journal article

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ER -

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

Abstract

Keywords

UN SDGs

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