1936b Nalivkina: 96-99. Alferov collection, W coast of
           Novaya Zemlya, at shore of Barents Sea, 1 km W of
           Rakov bay. 1.2 m thickness. Fauna: Cheiloceras
           discoidale, Ch. depressum, Ch. verneuili, Ch. acutum,
           Sporadoceras sp.