| Gyromitus cordiformis | | 1993-09-29 | 1993-09-29 | Frøylandsvatnet (Rogaland, Norway) |  |
| Gyromitus cordiformis | | 1991-09-10 | 1991-09-10 | Granavatnet (Trøndelag, Norway) | |
| Gyromitus cordiformis | | 1989-09-22 | 1989-09-22 | Granavatnet (Trøndelag, Norway) | |
| Gyromitus cordiformis | | 1991-10-02 | 1991-10-02 | Moensvatnet (Vestland, Norway) | |
| Gyromitus cordiformis | | 1989-09-14 | 1989-09-14 | Hostadvatnet (Møre og Romsdal, Norway) | |
| Gyromitus cordiformis | | 1991-08-28 | 1991-08-28 | Kruktjønna (Trøndelag, Norway) | |
| Gyromitus cordiformis | | 1990-09-07 | 1990-09-07 | Storvannet (Nordland, Norway) | |
| Gyromitus cordiformis | | 1990-09-07 | 1990-09-07 | Storvannet (Nordland, Norway) | |
| Gyromitus cordiformis | | 1989-09-15 | 1989-09-15 | Nøklevann (Oslo, Norway) | |
| Gyromitus cordiformis | | 1989-09-06 | 1989-09-06 | Rossevatn (Rogaland, Norway) | |
| Gyromitus cordiformis | | 1990-09-12 | 1990-09-12 | Korssjøen (Vestfold, Norway) | |
| Gyromitus cordiformis | | 1990-06-12 | 1990-06-12 | Rundvannet (Troms, Norway) | |
| Gyromitus cordiformis | | 1994-09-05 | 1994-09-05 | Holdalsvatn (Nordland, Norway) | |
| Gyromitus cordiformis | | 1989-09-27 | 1989-09-27 | Laupen (Innlandet, Norway) | |