| Name | From | To | Age range |
|---|---|---|---|
| Illichitina | Arenigian | Llandoverian |
|
| Illichitina calix | Ordovician | Ordovician |
|
| Illichitina campanulaeformis | Ordovician | Ordovician |
|
| Illichitina cervicornis | Silurian | Late Devonian |
|
| Illichitina communis | Silurian | Silurian |
|
| Illichitina coronata | Ordovician | Ordovician |
|
| Illichitina crotalum | Ordovician | Silurian |
|
| Illichitina dispar | Arenigian | Devonian |
|
| Illichitina effusa | Nd | Nd |
|
| Illichitina eisenacki | Middle Ordovician | Middle Ordovician |
|
| Illichitina elegans | Silurian | Silurian |
|
| Illichitina granulata | Llandeilian | Llandeilian |
|
| Illichitina hymenophora | Llandeilian | Llandeilian |
|
| Illichitina infundibuliformis | Early Ordovician | Devonian |
|
| Illichitina kukersiana | Late Algonkian | Cambrian |
|
| Illichitina lateris | Ordovician | Silurian |
|
| Illichitina multiplex | Ordovician | Silurian |
|