SOKURELLA GALACZI GEN. ET SP. NOV. AND OTHER MIDDLE JURASSIC PARKINSONIIDAE (AMMONOIDEA) FROM THE LOWER REACHES OF THE VOLGA RIVER

Abstract

A new genus, Sokurella, represented by the type species S. galaczi sp. nov., is described from the Lower Bathonian near Saratov and assigned to the subfamily Pseudocosmoceratinae (family Parkinsoniidae). The genera Pseudocosmoceras and Medvediceras, belonging to this subfamily, are briefly described and depicted.