New taxa of brachiopods of the order Atrypida from the Lower Devonian of Northeast Russia
From the Lower Devonian of Northeast Russia new taxa of atrypids: Musalitinispira, gen. nov. with type species M. dogdensis, sp. nov. (subfamily Atrypinae), Spinatrypina (Spinatrypina) krivensis, sp. nov. and Datnella, gen. nov. with type species D. datnensis (Baranov, 1995) (subfamily Spinatrypinae) are described.