| Name | From | To | Age range |
|---|---|---|---|
| Tanuchitina | Ordovician | Early Siegenian |
|
| Tanuchitina achabae | Tremadocian | Tremadocian |
|
| Tanuchitina agrestis | Ashgillian | Ashgillian |
|
| Tanuchitina anticostiensis | Late Ordovician | Hirnantian |
|
| Tanuchitina bergstroemi | Ordovician | Silurian |
|
| Tanuchitina boumendjelae | Late Tremadocian | Late Tremadocian |
|
| Tanuchitina cylindrica | Middle Ashgillian | Early Ludlovian |
|
| Tanuchitina domfrontensis | Late Arenigian | Late Arenigian |
|
| Tanuchitina elenitae | Wenlockian | Late Gorstian |
|
| Tanuchitina elongata | Late Tremadocian | Ashgillian |
|
| Tanuchitina fistulosa | Late Caradocian | Middle Ashgillian |
|
| Tanuchitina fusiformis | Ashgillian | Ashgillian |
|
| Tanuchitina granbyensis | Idavere | Idavere |
|
| Tanuchitina hyalophrys | Late Ordovician | Ashgillian |
|
| Tanuchitina laurentiana | Late Ordovician | Late Ordovician |
|
| Tanuchitina ontariensis | Early Paleozoic | Early Llandoverian |
|
| Tanuchitina paraensis | Early Gothlandian | Early Gothlandian |
|