| Paraorthacodus clarki (Eastman 1901) / P. eoceanus (Leriche 1902): Thanetian, Aquia Formation, Belevidere Beach, King Georges County, Virginia |
| Paraorthacodussp.: Maastrichtian, Lambert Formation, Hornby Island, Canada |
Paraorthacodus
ver. 1.2
Back & Forth
| Order Synechodontiforms Duffin & Ward, 1993 |
| Family Palaeospinacidae Regan, 1906 |
| Genus Paraorthacodus Glückman, 1957 |
| Paraorthacodus clarki (Eastman 1901) / P. eoceanus (Leriche 1902): Thanetian, Aquia Formation, Belevidere Beach, King Georges County, Virginia |
| Paraorthacodussp.: Maastrichtian, Lambert Formation, Hornby Island, Canada |
| Paraorthacodus nerviensis (Leriche 1929): Santonian, Tyk-Butak, E. Mangyshlak Peninsula, W. Kazakhstan |
| Paraorthacodus sp.: Albian, Stary Oskol, Belgorod Region |
| 20120120 |
Synechodus
ver. 1.1
| Order Synechodontiforms Duffin & Ward, 1993 |
| Family Palaeospinacidae Regan, 1906 |
| Genus Synechodus Woodward, 1888 |
| Synechodus lerichei Herman 1977: Santonian, Tyk-Butak, E. Mangyshlak Peninsula, W. Kazakhstan |
| Synechodus tennis Woodward 1889: Upper albian, Kolbay, W. Mangyshlak Peninsula, Kazakhstan |
| Synechodus sp.: Upper albian, Stary Oskol, Belgorod region |
| 20111227 |
| synechodus sp.: Volgian age, Middle substage (Upper Jurassic), Voskresensk, Moscow region |
| 3.5 mm H 20120520 |
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