Genus Bipolaribucina
- Species total:
- 11
- Age range:
- 65 - 11 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Bipolaribucina | Early Tertiary | Middle Oligocene |
|
Bipolaribucina biornata | Eocene | Eocene |
|
Bipolaribucina conicosa | Early Oligocene | Middle Oligocene |
|
Bipolaribucina huanghuaensis | Eocene | Middle Oligocene |
|
Bipolaribucina liaoningensis | Early Tertiary | Middle Oligocene |
|
Bipolaribucina oblongata | Early Oligocene | Middle Oligocene |
|
Bipolaribucina paradoxa | Late Priabonian | Serravallian |
|
Bipolaribucina sp | Nd | Nd |
|
Bipolaribucina sp.1 | Middle Oligocene | Middle Oligocene |
|
Bipolaribucina sp.2 | Eocene | Eocene |
|
Bipolaribucina tianjinensis | Early Oligocene | Middle Oligocene |
|