| Name | From | To | Age range |
|---|---|---|---|
| Striatotheca trigonia | Early Ordovician | Early Llanvirnian |
|
| Striatotheca virgata | Early Paleozoic | Early Paleozoic |
|
| Name | From | To | Age range |
|---|---|---|---|
| Striatotheca trigonia | Early Ordovician | Early Llanvirnian |
|
| Striatotheca virgata | Early Paleozoic | Early Paleozoic |
|