Genus Tectosphaeridium
- Species total:
- 2
- Age range:
- 428 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tectosphaeridium | Late Aeronian | Late Aeronian |
|
| Tectosphaeridium labyrinthum | Late Aeronian | Late Aeronian |
|
Genus Tectosphaeridium
- Species total:
- 2
- Age range:
- 428 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Tectosphaeridium | Late Aeronian | Late Aeronian |
|
| Tectosphaeridium labyrinthum | Late Aeronian | Late Aeronian |
|