| Goniodoma F. Stein, 1883 |
| Goniodoma acuminatum (Ehrenb.) F. Stein, 1883 |
| Goniodoma concavum Gaarder, 1954 |
| Goniodoma orientale (Er. Lindem.) Balech, 1979 |
| Goniodoma polyedricum (C.H.G. Pouchet) Jørg., 1899 |
| Goniodoma sphaericum G. Murray & Whitting, 1899 |
| Goniodomataceae Er. Lindem., 1928 |
| Triadinium J.D. Dodge, 1981 |
| Triadinium polyedricum (Pouchet) Dodge, 1981 |
| Triadinium sphaericum (G. Murray & Whitting) J.D. Dodge, 1981 |