Eoptolamnidae; Leptostyrax
ver. 1.1
| Order Lamniformes BERG, 1958 |
| Family Eoptolamnidae KRIWET et al., 2008 |
| Genus Leptostyrax WILLISTON, 1900/ Megarhizodon SOKOLOV, 1978 |
| Leptostyrax macrorhiza/ Lamna macrorhiza COPE, 1875: a1,a2; Albian-Cenomanian, Pawpaw Formation, Tarrant County, Texas, b; Lower Santonian, Tyk-Butak, E. Mangyshlak Peninsula, W. Kazakstan |
| 20111012 |
Megarhizodon
ver. 1.0
| Family Eoptolamnidae KRIWET et al., 2008 |
| Genus Megarhizodon SOKOLOV, 1978/ Leptostyrax WILLISTON, 1900 |
| Megarhizodon macrorhiza KUROCHKIN et al., 2006: Albian , Stariy Oskol, Belgorod region |
| 20120520 |
Protolamna
ver. 1.2
| Family Eoptolamnidae KRIWET et al., 2008 |
| Genus Protolamna CAPPETTA, 1980 |
| Protolamna arcuata (MÜLLER et DIEDRICH, 1991): Lower Santonian, Tyk-Butak, E. Mangyshlak Peninsula, W. Kazakstan |
| Protolamna nugaitensis: Upper Cenomanian, Nugaity, W. Kazakhstan |
| Protolamna sokolovi CAPPETTA, 1980: Albian-Cenomanian, Pawpaw Formation, Tarrant County, Texas |
| Protolamna cappettai (ZHELEZKO, 1990): Albian-Cenomanian, Kolbay, W. Kazakhstan |
| 20120302 |