Proteoceras pulchrum (FOSSIL) Flower, 1955 † USA, Vermont, Addison
Cyrtactinoceras rebelle (FOSSIL) (Barrande, 1866 †) Czech Republic, Bohemia
Isorthoceras rogersensis (FOSSIL) (Foerste, 1914 †)
Isorthoceras sociale (FOSSIL) (J.W. Hall, 1877 †) USA, Wisconsin, Grant
Isorthoceras suave (FOSSIL) (Angelin & Lindström,1880 †) Sweden, Dalarna, Rättvik
Isorthoceras subcostatum (FOSSIL) (Portlock, 1843 †) UK, Northern Ireland
Gorbyoceras tetreauense (FOSSIL) Wilson, 1961 † Canada, Newfoundland and Labrador, Division No. 4
Gorbyoceras textumaraneum (FOSSIL) (F.A. Roemer, 1861 †) Estonia, Hiiu
Treptoceras transversum (FOSSIL) (Miller, 1875 †) USA, Kentucky, Kenton
Proteoceras tyronensis (FOSSIL) (Foerste, 1912 †) Estonia, Ida-Viru
Gangshanoceras villicumense (FOSSIL) Kröger & al., 2007 † Argentina, San Juan, Albardón
Isorthoceras wahlenbergi (FOSSIL) Niko, 2007 † Sweden, Dalarne
Gangshanoceras wennanense (FOSSIL) Ying, 1989 †
Treptoceras yokoyamai (FOSSIL) (Kobayashi, 1927 †) South Korea, Gangwon-do, Jeongseon