THE LOWER KAZANIAN (UPPER PERMIAN) TEREBRATULID ASSEMBLAGE OF THE FAMILY BEECHERIIDAE FAM. NOV. (BRACHIOPODA) FROM THE EAST OF THE RUSSIAN PLATFORM

Abstract

New taxa of Lower Kazanian terebratulids from the basin of the Sok River are described (family Beecheriidae, genus Sokelasma, species S. guttiformis sp. nov., S. esaulovae sp. nov.). The shell interior of Dielasma angusta Netschajew, 1894, which is studied for the first time, allows its assignment to the genus Beecheria.