Phacoides borealis Glazunova 1970

Glazunova 1970. [New Early Cretaceous Phacoides from Povolzhe]. Efimova, A. F.[New species of prehistoric plants and invertebrates of the USSR.] Vyp. 2. Part 1., Nedra, Moscow, 1968., 1970: Unpaginated. Chapter pagination: Unpaginated