Arpagodus
ver. 1.0
| Order Eugeneodontiformes ZANGERL, 1981 |
| Family Agassizodontidae ZANGERL, 1981 |
| Genus Arpagodus ST. JOHN et WORTHEN, 1875 |
| Arpagodus rectangulus TRAUTSCHOLD, 1879: Upper Pennsylvanian, Raytown Limestone Fm., Lenexa, Johnson Co., Kansas |
Harpacodus/Venustodus
ver. 1.0
| Order Petalodontiformes ZANGERL, 1981 (Bradyodontii)/ Cochliodontiformes OBRUCHEV, 1953 |
| Family Petalodontidae NEWBERRY et WORTHE, 1866/ Cochliodontidae incertae sedis.... |
| Genus Harpacodus DAVIS, 1883/ Venustodus ST. JOHN et WORTHEN, 1875 |
| Harpacodus clavatus DAVIS, 1883/Venustodus clavatus: Serpuchovian, Upper Mississippian, Serpuchov Formation, Moscow Region |
| 5 mm W |
| Harpacodus sp./Venustodus sp.: Upper Mississipian, Haney Formation, Crawford County, Indiana |
| 12 mm W |
Lisgodus
ver. 1.0
| Order Petalodontiformes ZANGERL, 1981 (Bradyodontii) |
| Family Petalodontidae NEWBERRY et WORTHE, 1866 |
| Genus Lisgodus ST. JOHN et WORTHEN, 1875 |
| Lisgodus sp.: a; Middle Mississippian, Harrodsburg Limestone Fm., Washington County b; Middle Mississippian, Salem Limestone Fm., Washington County, Indiana |
| 2.2 mm H, 2.6 mm H |
Tanaodus
ver. 1.0
| Family Petalodontidae NEWBERRY et WORTHE, 1866 |
| Genus Tanaodus ST. JOHN et WORTHEN, 1875 |
| Tanaodus polymorphus ST. JOHN et WORTHEN, 1875: Upper Mississipian, Haney Formation, Crawford County, Indiana |
| 8 mm W |
Mesodmodus
ver. 1.0
| Order Orodontiformes ZANGERL, 1981/Hybodontiformes ZANGERL, 1981 |
| Family Orodontidae DEKONINCK, 1878/ Hybodontidae OWEN, 1846 |
| Genus Mesodmodus ST. JOHN et WORTHEN, 1875 |
| Mesodmodus sp.: Lower Pennsylvanian, Serpukhov Formation, Moscow Region, Serpukhov |
| 4.1 mm W |
20120901 Fumio Nakagawa