Family OBRUCHEVODIDAE LUND, GROGAN & FATH 2014 オブルケウォドゥス科
Obruchevodids (オブルケウォドゥス科魚種)
Genus Obruchevodus♂ GROGAN, LUND & FATH 2014 オブルケウォドゥス属 (絶滅)
◆オブルケウォドゥス・グリッフィティ (絶滅) †Obruchevodus griffithi Grogan, Lund & Fath 2014 *2014『A New Petalodont Chondrichthyan from the Bear Gulch Limestone of Montana, USA, with Reassessment of Netsepoye hawesi and Comments on the Morphology of Holomorphic Petalodonts:E.D.Grogan, R.Lund & M.Fath』。
Genus Siksika♀ LUND 1989 シクシカ属 (絶滅)
◆シクシカ・オッタエ (絶滅) †Siksika ottae Lund 1989 *1989『New Petalodonts [Chondrichthyes] from the Upper Mississippian Bear Gulch Limestone Namurian E2b of Montana:Richard Lund』。