The area under consideration covers the extreme northeast of Yakutia and the right bank of the lower Kolyma River basin. The Lower Cretaceous sediments are distributed here in four structural-facial areas - Momo-Zyryanskaya, Oloyskaya, Anyuyskaya, and Alazeyskaya - confined to different structural elements of the Mesozoic of the North-East. The first three areas include several structural-facies zones, usually spatially coinciding with troughs and troughs of the same name ...