| Synonymous name | : | Haplocrinites hemisphaericus G. Troost | |
Ref: PBDB: 25 Jun 2019. |
| Synonymous name | : | †Pisocrinus gorbyi Miller, 1891 | |
Ref: PBDB: 25 Jun 2019. |
| Synonymous name | : | †Pisocrinus milligani Miller & Gurley, 1895 | |
Ref: PBDB: 25 Jun 2019. |
| Synonymous name | : | †Pisocrinus quinquelobus (Bather, 1893) | |
Ref: PBDB: 25 Jun 2019. |