Genus Grahnichitina
- Species total:
- 7
- Age range:
- 423 - 395 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Grahnichitina campaniformis | Ludfordian | Pridolian |
|
| Grahnichitina lagenomorpha | Ludfordian | Pridolian |
|
| Grahnichitina lycoperdoides | Homerian | Gorstian |
|
| Grahnichitina philipi | Ludfordian | Ludfordian |
|
| Grahnichitina piriformis | Ludfordian | Pridolian |
|
| Grahnichitina solida | Sheinwoodian | Sheinwoodian |
|
| Grahnichitina vesicularis | Gorstian | Gorstian |
|