Author(s)

Igor N. Kosenko^1,2*, Olga S. Urman², Egor K. Metelkin^2,3, Boris N. Shurygin^2,3, Alexander E. Igolnikov^2,3

¹State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology CAS, Nanjing, China.
²Trofimuk Institute of Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia.
³Department of Geology and Geophysics, Novosibirsk State University, Novosibirsk, Russia.

New data on the litho- and biostratigraphy of the Jurassic/Cretaceous (J/K) boundary interval of the lower reaches of the Lena river, at the Cape Chekurovka and Cape Chucha, are presented. Volgian-Valanginian interval of the Chekurovka section is represented by Buolkalakh and Kigilyakh formations and corresponds to beds with Buchia fisheriana, beds with B. unschensis, beds with B. okensis and B. volgensis, beds with B. volgensis, beds with B. volgensis and B. tolmatschowi and beds with B. keyserlingi. Volgian-Valanginian interval of the Chucha section is represented by Chonoko, Khairgass and Kigilyakh formations and corresponds to beds with B. unschensis, beds with B. volgensis and B. okensis, beds with B. volgensis and B. tolmatschowi and beds with B. keyserlingi.

Stratigraphy, Jurassic, Cretaceous, Siberia, Lena River

Kosenko, I. , Urman, O. , Metelkin, E. , Shurygin, B. and Igolnikov, A. (2019) New Data on the Litho- and Biostratigraphy of the J/K Boundary Interval of the Lower Reaches of the Lena River (Eastern Siberia). Open Journal of Geology, 9, 554-557. doi: 10.4236/ojg.2019.910040.