| Name | From | To | Age range |
|---|---|---|---|
| Illichitina kukersiana | Late Algonkian | Cambrian |
|
| Illichitina campanulaeformis | Ordovician | Ordovician |
|
| Illichitina calix | Ordovician | Ordovician |
|
| Illichitina lateris | Ordovician | Silurian |
|
| Illichitina multiplex | Ordovician | Silurian |
|
| Illichitina coronata | Ordovician | Ordovician |
|
| Illichitina sp | Ordovician | Devonian |
|
| Illichitina infundibuliformis | Early Ordovician | Devonian |
|
| Illichitina crotalum | Ordovician | Silurian |
|
| Illichitina dispar | Arenigian | Devonian |
|
| Illichitina | Arenigian | Llandoverian |
|
| Illichitina eisenacki | Middle Ordovician | Middle Ordovician |
|
| Illichitina ornata | Early Llanvirnian | Late Llandeilian |
|
| Illichitina secunda | Early Llanvirnian | Middle Llandeilian |
|
| Illichitina granulata | Llandeilian | Llandeilian |
|
| Illichitina novempopulanica | Llandeilian | Llandeilian |
|
| Illichitina hymenophora | Llandeilian | Llandeilian |
|