Westonoceras ventricosum (FOSSIL) (S.A. Miller, 1875 †)
Winnipegoceras bighornense (FOSSIL) (Miller & Carrier,1942 †)
Winnipegoceras fragmentaricum (FOSSIL) E. Strand, 1934 †
Winnipegoceras laticurvatum (FOSSIL) (J.J.F. Whiteaves,1897 †)
Winnipegoceras latum (FOSSIL) (Troedsson, 1926 †)
Winnipegoceras obesum (FOSSIL) Flower, 1952 †
Winnipegoceras reclinatum (FOSSIL) (Troedsson, 1926 †)
Winnipegoceras royi (FOSSIL) Miller, Youngquist& Collinson, 1954 †
Winnipegoceras sinclairi (FOSSIL) Flower, 1952 †
Winnipegoceras youngquisti (FOSSIL) Flower, 1952 †