Keywords
ossil malacofauna; malacocomplexes; stratigraphy; radiocarbon dating; Pleistocene; Holocene;
Pages
pp. 107 -
117

The malacocomplexes studied in alluvial deposits of the Syra River valley formed during the Late Pleistocene to the Middle Holocene. They include 46 species from 15 families (Sphaeriidae, Bithyniidae, Valvatidae, Lymnaeidae, Physidae, Planorbidae, Carychiidae, Succineidae, Cochlicopidae, Valloniidae, Vertiginidae, Discidae, Pristilomatidae, Gastrodontidae, Hygromiidae). Most of the registered freshwater mollusc species tend to inhabit either permanent, weakly flowing or stagnant waterbodies that are overgrown with macrophytes or with signs of swamping; or temporary drying ponds and swamps. Species composition of terrestrial snails indicates the presence of highly humid conditions in their habitats. Perhaps there were temporary swampy water bodies at the site of the modern riverbed and the composition of the fossil malacofauna along with ecological preferences of found mollusc species represents the specific features of the palaeoecological conditions of past ages.

DOI
10.35885/ruthenica.2026.36(3).1
Моллюски аллювиальных отложений долины реки Сыры (Средний Урал, бассейн реки Камы)
Овчанкова Н.Б. ;