Name | From | To | Age range |
---|---|---|---|
Duvernaysphaera stellata | Gedinnian | Famennian |
|
Duvernaysphaera tenuimarginata | Early Devonian | Late Carboniferous |
|
Duvernaysphaera actinota | Gedinnian | Gedinnian |
|
Duvernaysphaera wilsonii | Devonian | Late Devonian |
|
Duvernaysphaera oa | Gedinnian | Gedinnian |
|
Duvernaysphaera tessella | Early Devonian | Visean |
|
Duvernaysphaera vermiculata | Middle Givetian | Early Frasnian |
|