Chaenocardia Meek & Worthen, 1869 † (original description)
Codonites Meek & Worthen, 1869 (original description)
Gyrinophilus Cope, 1869 (original description)
Hemiacis Cope, 1869 † (original description)
Hyperaodon Cope, 1869 accepted as Hyperoodon Lacépède, 1804 (original description)
Lepidocidaris Meek & Worthen, 1873 † (original description)
Manculus Cope, 1869 (original description)
Mixophagus Cope, 1869, nom. nud. † accepted as Procyon Storr, 1780 (original description)
Nanohyus Leidy, 1869 (original description)
Omomys Leidy, 1869 † (original description)
Pholidocidaris Meek & Worthen, 1869 † (original description)
Prothyris Meek, 1869 † (original description)
Rhachianectes Cope, 1869 accepted as Eschrichtius Gray, 1864 (original description)
Stereochilus Cope, 1869 (original description)
Thorius Cope, 1869 (original description)