"Ural Sea" redirects here. Not to be confused with the Ural Ocean.
The Turgai Strait, also known as the Turgay/TurgaiSea, Obik Sea, Ural Sea[1]orWest Siberian Sea, was a large shallow body of salt water (an epicontinental or epeiric sea) during the Mesozoic through CenozoicEras. It extended north of the present-day Caspian Sea to the "paleo-Arctic" region, and was in existence from the Middle JurassictoOligocene, approximately 160 to 29 million years ago.[2]
The Turgai Strait was not absolutely continuous throughout this entire era, though it was a persistent and predominating feature in its region; it "fragmented southern Europe and southwestern Asia into many large islands, and separated Europe from Asia."[3]
The division of the Eurasian landmass by the Turgai Sea had the effect of isolating animal populations.[4]
^Briggs, John C. Global Biogeography. Amsterdam, Elsevier Science, 1995; pp. 71, 76, 84, 88, and ff.
^Duellman, William Edward. Biology of Amphibians. Baltimore, Johns Hopkins University Press, 1994; p. 480.
^Duellman, William E. (1986). Biology of Amphibians. JHU Press. p. 479. ISBN9780801847806. Otherwise, most, if not all, continental masses were united into a single land mass — Pangaea. ... (M) Leiopelmatidae (L) Discoglossidae (U) Palaeobatrachidae (U) Cretaceous, 135 m.y. Turgai Sea separated east and west Eurasia
