Name | From | To | Age range |
---|---|---|---|
Alterbia bakeri | Early Santonian | Early Eocene |
|
Alterbia | Aptian | Early Tertiary |
|
Alterbia microgranulata | Paleocene | Middle Eocene |
|
Alterbia recticornis | Turonian | Middle Eocene |
|
Alterbia ambigua | Cenomanian | Middle Eocene |
|
Alterbia bicellula | Early Eocene | Middle Eocene |
|
Alterbia earnleyensis | Early Eocene | Middle Eocene |
|
Alterbia ovalis | Turonian | Middle Eocene |
|
Alterbia bellula | Early Eocene | Late Eocene |
|
Alterbia distincta | Early Tertiary | Early Oligocene |
|
Alterbia puyangensis | Early Tertiary | Middle Miocene |
|
Alterbia asymmetrica | Middle Albian | Quaternary |
|
Alterbia polymorpha | Maastrichtian | Maastrichtian |
|
Alterbia dilwynensis | Maastrichtian | Maastrichtian |
|
Alterbia ectorugosa | Late Eocene | Late Eocene |
|
Alterbia xinjiangensis | Paleocene | Paleocene |
|
Alterbia magnifica | Eocene | Eocene |
|