Genus
Visbysphaera Lister emend. Kirjanov, 1978
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1521-40 | Visbysphaera gothlandica | Pterospermella gothlandica | Middle Cambrian (old nomenclature) |
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1521-40 | Visbysphaera gothlandica | Pterospermella gothlandica | Middle Cambrian (old nomenclature) |