| Name | From | To | Age range |
|---|---|---|---|
| Hercochitina downiei | Ordovician | Late Ordovician |
|
| Hercochitina | Ordovician | Ashgillian |
|
| Hercochitina crickmayi | Ordovician | Early Gothlandian |
|
| Hercochitina sp | Ordovician | Late Ordovician |
|
| Hercochitina duplicitas | Ordovician | Ordovician |
|
| Hercochitina cristata | Ordovician | Early Ashgillian |
|
| Hercochitina duplicatus | Late Tremadocian | Early Ashgillian |
|
| Hercochitina minuta | Arenigian | Ashgillian |
|
| Hercochitina bromidensis | Middle Ordovician | Blackriveran |
|
| Hercochitina grandispina | Llanvirnian | Early Gothlandian |
|
| Hercochitina volkheimerii | Early Llanvirnian | Early Caradocian |
|
| Hercochitina spinetum | Mohawkian | Edenian |
|
| Hercochitina sp.1 | Late Llanvirnian | Ashgillian |
|
| Hercochitina pinguis | Early Llandeilian | Early Llandeilian |
|
| Hercochitina sp.A | Llandeilian | Early Edenian |
|
| Hercochitina normalis | Late Ordovician | Early Gothlandian |
|
| Hercochitina gamachiana | Late Ordovician | Late Ordovician |
|