Name | From | To | Age range |
---|---|---|---|
Alterbia microgranulata | Paleocene | Middle Eocene |
|
Alterbia mauthei | Nd | Nd |
|
Alterbia magnifica | Eocene | Eocene |
|
Alterbia macrocysta | Campanian | Campanian |
|
Alterbia jurassica | Nd | Nd |
|
Alterbia ingramii | Turonian | Turonian |
|
Alterbia foliacea | Turonian | Campanian |
|
Alterbia eyrensis | Albian | Cenomanian |
|
Alterbia ectorugosa | Late Eocene | Late Eocene |
|
Alterbia earnleyensis | Early Eocene | Middle Eocene |
|
Alterbia distincta | Early Tertiary | Early Oligocene |
|
Alterbia dilwynensis | Maastrichtian | Maastrichtian |
|
Alterbia dictyon | Campanian | Campanian |
|
Alterbia daveyi | Albian | Early Turonian |
|
Alterbia curvicornis | Campanian | Campanian |
|
Alterbia circula | Danian | Late Paleocene |
|
Alterbia bicellula | Early Eocene | Middle Eocene |
|