| Order Orodontiformes ZANGERL, 1981 |
| Family Orodontidae DEKONINCK, 1878 |
| Genus Orodus AGASSIZ, 1838 |
| Orodus greggi ZANGERL, 1981: Upper Pennsylvanian, Raytown Limestone Fm., Lenexa, Johnson Co., Kansas |
| 14 mm |
| 20030625 |
| Orodus moniliformis : Serpuchovian, Upper Mississippian Serpuchov Formation, Moscow Region |
| 8 mm W |
| Orodus sp.: Upper Mississippian, Haney Fm.Crawford County, Indiana |
| 9.9 mm W |
| Orodus sp.: Lower Middle Mississippian, Harrodsburg Limestone Fm., Washington County, Indiana, |
| 28 mm W, 3.2 mm W |
| Orodus sp.: Middle Mississippian, Salem/Harrodsburg Limestone, Hardin County, Kentucky |
| 6.5 mm W |
| 20070204 |
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 |
Cladoselache
ver. 1.0
| Order Cladoselachiformes DEAN, 1909 |
| Family Cladoselachidae DEAN, 1894 |
| Genus Cladoselache DEAN, 1894 |
| Cladoselache lamnoides NEWBERRY et WORTHEN, 1866: Lower Carboniferous (Moscovian,
Middle Pennsylvanian), kazimov Formation, Achkasovo, Moscow region |
| 20080219 |
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