Genus Trachypsophosphaera
- Species total:
- 19
- Age range:
- 4100 - 263.33 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Trachypsophosphaera universala | Cambrian | Silurian |
|
Trachypsophosphaera uspenskyi | Early Ordovician | Early Permian |
|