Edaphodon
ver. 1.1
Chimaera. Cochliodus. Edaphodon
| Order | Chimaeriformes OBRUCHEV, 1953 |
| Suborder | Chimaeroidei PATTERSON, 1965 |
| Family | Callorhynchidae PATTERSON, 1965 |
| Subfamily | Edaphodontinae STAHL, 1999 |
| Genus | Edaphodon BUCKLAND,1838 |
| Edaphodon sp.: Albian, Stariy Oskol, Belgorod region, Russia |
| 60 mm W |
Helodus
ver. 1.1
| Order Helodontiformes PATTERSON, 1965 |
| Family Helodontidae PATTERSON, 1965 |
| Genus Helodus AGASSIZ 1838 |
| Helodus sp.: a; Middle Mississippian, Harrodsburg Limestone Fm., Washington County, b; Middle Mississippian, Salem/Harrodsburg Limestone, Hardin County, Kentucky c; Upper Mississipian, Haney Formation, Crawford County, Indiana |
| 8 mm W, 6.5 mm W, 4.5 mm W |
Platyxystrodus
ver. 1.1
| Order Chondrenchelyiformes PATTERSON, 1975 |
| Family Chondrenchelyidae BERG, 1940 |
| Genus Platyxystrodus HAY, 1899 |
| Platyxystrodus sp.:Lower Pennsylvanian, Serpuchov Formation, Moscow region |
| 7 mm W |
Deltoptychius
ver. 1.1
| Order Menaspiformes OBRUCHEV, 1953 |
| Family Deltoptychiidae PATTERSON, 1965 |
| Genus Deltoptychius MORRIS et ROBERTS,1838 |
| Deltptychius sp.: Serpukhovian, Upper Mississippian Serpuchov Formation, Moscow Region |
| 22 mm W |
Psammodus
ver. 1.1
| Order Psammodontiformes OBRUCHEV, 1953 |
| Family Psammodontidae DE KONINCK, 1878 |
| Genus Psammodus AGASSIZ, 1838 |
| Psammodus sp.:Middle Mississippian, Salem Limestone Fm., Washington County, Indiana |
| 27 mm W |
Lagarodus
ver. 1.1
| Order Psammodontiformes OBRUCHEV, 1953 |
| Psammodontidae incerte sedis |
| Genus Lagarodus JAEKEL,1898 |
| Lagarodus sp.Upper Mississippian, Salem Limestone Fm., Hardin County Lagarodus angustidens; Middle Pennsylvanian, Achkasovo, Kasimov Formation, Moscow Region |
| 16 mm W, 22 mm W |
| 20071012 ver. 2.0 |
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