| Synonymous name | : | †Caulinites ambiguus Brongn. (1845) | |
Ref: PBDB: 11 Jan 2019. |
| Synonymous name | : | †Caulinites digitatus Watelet (1866) | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | †Caulinites formosus Watelet (1866) | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | †Caulinites imbricatus Watelet (1866) | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | †Caulinites indeterminatus Ung (1850) | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | †Caulinites marceauxi Watelet (1853) | |
Ref: PBDB: 11 Jan 2019. |
| Synonymous name | : | †Caulinites wateleti Bronignart (1866) | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | †Posidonia perforata Saporta & Marion (1878) | |
Ref: PBDB: 27 Oct 2013. |
| Synonymous name | : | †Posidonia rogowiczi Schmalhausen (1883) | |
Ref: PBDB: 27 Oct 2013. |