Classification of the genus Borissiakoceras
G. †Borissjakoceras Arkhangel'skii 1916
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†Borissiakoceras ashurkoffae Cobban and Gryc 1961
†Borissiakoceras inconstans Cobban and Gryc 1961
†Borissiakoceras orbiculatum Stephenson 1955
†Borissiakoceras reymenti Brunnschweiler 1959
†Borissjakoceras rosenkrantzi Birkelund 1965