Further observations on the bio- and magnetostratigraphy of the J/K boundary interval in southern Ukraine

William A.P. Wimbledon, Andrea Svobodova, Vladimir Bakhmutov, Ievgen Poliachenko, Dmytro Hlavatskyi


This is an account of finds of stratigraphically useful calcareous nannofossils and the magnetostratigraphy of the Jurassic-Cretaceous boundary interval of the eastern Crimean peninsula (southern Ukraine). We compare these new complementary results with those presented by our team in earlier publications. A missing interval in the Crimean sequence is filled, and the position of the Tithonian-Berriasian (J/K) boundary is confirmed


J/K boundary, Tithonian, Berriasian calcareous nannofossils, magnetostratigraphy

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