| Name | From | To | Age range |
|---|---|---|---|
| Plectochitina sp.III | Late Llandoverian | Ludlovian |
|
| Plectochitina sp.V | Late Llandoverian | Ludlovian |
|
| Plectochitina spongiosa | Onnian | Early Llandoverian |
|
| Plectochitina sylvanica | Middle Ordovician | Rhuddanian |
|
| Plectochitina tapajonica | Devonian | Early Famennian |
|
| Plectochitina taugourdeaui | Llandoverian | Early Gedinnian |
|
| Plectochitina vanoyenii | Early Gothlandian | Middle Gothlandian |
|
| Plectochitina variabilis | Early Devonian | Early Gedinnian |
|