TY - JOUR

T1 - Late Miocene molluscs of the Morskaya 2 site (Azov Sea region, Russia)

AU - Frolov, Pavel D.

AU - Danukalova, Guzel A.

AU - Osipova, Evgeniya M.

N1 - Frolov, Pavel D., Danukalova, Guzel A., and Osipova, Eugenia M. 2020. Late Miocene molluscs of the Morskaya 2 site (Azov Sea region, Russia). Palaeontologia Electronica, 23(1):a20. https://doi.org/10.26879/936 palaeo-electronica.org/content/2020/3013-molluscs-from-morskaya-2-site

PY - 2020

Y1 - 2020

N2 - Clays and sands of the Morskaya 2 site in the northeastern Azov Sea region contain an assemblage of freshwater and marine molluscs. The site known since the earlytwentieth century as “Paludina beds” has been alternatively attributed to either LatePliocene or Late Miocene. Our study shows that the site yielded two assemblages withone composed of Middle Sarmatian (Bessarabian) marine species (M1) and the othercontaining freshwater and terrestrial molluscs of late Maeotian age (about 7-6 Ma)(M2) with redeposited Bessarabian marine forms. The former assemblage was datedby the vertebrate fauna to the late Turolian and MN13 unit of the West European mammalian biostratigraphical scheme. This level correlates to the Messinian of the International Chronostratigraphic Chart. Ecological preferences in humidity, vegetation, etc. ofthe terrestrial and freshwater molluscs indicate the presence of a freshwater body richin aquatic vegetation with a periodical current and a probable connection with a brackish water body located near the Palaeo-Don river delta. Deciduous forests, bushes,and meadows grew on the banks of this basin. The presented revision of molluscsfrom Morskaya 2 elucidates the composition and correlations of the late Miocene nonmarine fauna in the southeast Europe and includes a description of molluscan assemblages, a discussion of systematic position of the studied molluscs, and a palaeoenvironmental reconstruction of the freshwater basin and its surroundings.

AB - Clays and sands of the Morskaya 2 site in the northeastern Azov Sea region contain an assemblage of freshwater and marine molluscs. The site known since the earlytwentieth century as “Paludina beds” has been alternatively attributed to either LatePliocene or Late Miocene. Our study shows that the site yielded two assemblages withone composed of Middle Sarmatian (Bessarabian) marine species (M1) and the othercontaining freshwater and terrestrial molluscs of late Maeotian age (about 7-6 Ma)(M2) with redeposited Bessarabian marine forms. The former assemblage was datedby the vertebrate fauna to the late Turolian and MN13 unit of the West European mammalian biostratigraphical scheme. This level correlates to the Messinian of the International Chronostratigraphic Chart. Ecological preferences in humidity, vegetation, etc. ofthe terrestrial and freshwater molluscs indicate the presence of a freshwater body richin aquatic vegetation with a periodical current and a probable connection with a brackish water body located near the Palaeo-Don river delta. Deciduous forests, bushes,and meadows grew on the banks of this basin. The presented revision of molluscsfrom Morskaya 2 elucidates the composition and correlations of the late Miocene nonmarine fauna in the southeast Europe and includes a description of molluscan assemblages, a discussion of systematic position of the studied molluscs, and a palaeoenvironmental reconstruction of the freshwater basin and its surroundings.

KW - Bivalvia

KW - Gastropoda

KW - Neogene

KW - Maeotian

KW - Sarmatian

UR - https://pdfs.semanticscholar.org/9af2/e6de68cce63c4f35ee1e6cd4200ff75b47e5.pdf?_ga=2.121109198.799490389.1649229471-812863314.1649076212

M3 - Article

VL - 23

JO - Palaeontologia Electronica

JF - Palaeontologia Electronica

SN - 1935-3952

IS - 1

M1 - a20

ER -