Genus Symplassosphaeridium
- Species total:
- 32
- Age range:
- 4100 - 230 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Symplassosphaeridium undosum | Early Riphean | Late Riphean |
|
| Symplassosphaeridium specusum | Late Proterozoic | Cambrian |
|
| Symplassosphaeridium dictyotum | Late Proterozoic | Cambrian |
|
| Symplassosphaeridium sp. Germ.et al,1989 | Late Riphean | Early Paleozoic |
|
| Symplassosphaeridium biglume | Late Riphean | Silurian |
|
| Symplassosphaeridium infriatum | Sinian | Sinian |
|
| Symplassosphaeridium subsoalitum | Vendian | Vendian |
|
| Symplassosphaeridium conglutinatum | Vendian | Vendian |
|
| Symplassosphaeridium sp. Gauc.et al,1996 | Middle Vendian | Late Cambrian |
|
| Symplassosphaeridium piluliferum | Early Cambrian | Early Cambrian |
|
| Symplassosphaeridium mycterum | Early Cambrian | Early Cambrian |
|
| Symplassosphaeridium vesiculiferum | Early Cambrian | Early Cambrian |
|
| Symplassosphaeridium cambriense | Middle Cambrian | Middle Cambrian |
|
| Symplassosphaeridium ballatum | Middle Cambrian | Middle Cambrian |
|
| Symplassosphaeridium sp.Visa.et al,1976 | Ordovician | Ordovician |
|