Genus
Helosphaeridium Lister, 1970
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 344-138 | Helosphaeridium varispinosum | Helosphaeridium varispinosum Uutela et Tynni, 1991 | 74 | Pirgu Stage | holotype |
| Images | ||||||
|---|---|---|---|---|---|---|
| GIT 344-138 | Helosphaeridium varispinosum | Helosphaeridium varispinosum Uutela et Tynni, 1991 | 74 | Pirgu Stage | holotype |