| Synonymous name | : | †Trionyx brunhuberi Ammon, 1911 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx gergensi (Reinach, 1900) | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx hoernesi Heritsch, 1909 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx peneckei Heritsch, 1909 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx petersi Hoernes, 1881 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx rostratus Arthaber, 1898 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx septemcostatus Hoernes, 1881 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx teiritzbergensis Gemel, 2002 | |
Ref: PBDB: 27 Dec 2017. |
| Synonymous name | : | †Trionyx teyleri Winkler, 1869 | |
Ref: PBDB: 27 Dec 2017. |