Genus Oligosphaeridium
- Species total:
- 103
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Oligosphaeridium sp. Bjae.,1978 | Valanginian | Albian |
|
Oligosphaeridium prolixispinosum | Valanginian | Paleocene |
|
Oligosphaeridium suibinense | Valanginian | Hauterivian |
|
Oligosphaeridium heilongjiangense | Valanginian | Hauterivian |
|
Oligosphaeridium sp.FE | Early Valanginian | Middle Valanginian |
|
Oligosphaeridium nannus | Valanginian | Albian |
|
Oligosphaeridium fenestratum | Middle Valanginian | Middle Barremian |
|
Oligosphaeridium porosum | Late Valanginian | Early Cenomanian |
|
Oligosphaeridium jixiense | Late Valanginian | Early Hauterivian |
|
Oligosphaeridium sp.1 Heil.,1987 | Late Valanginian | Hauterivian |
|
Oligosphaeridium amplexum | Early Hauterivian | Early Hauterivian |
|
Oligosphaeridium sp.A Khow.& Jain,1992 | Hauterivian | Barremian |
|
Oligosphaeridium junctum | Hauterivian | Hauterivian |
|
Oligosphaeridium umbraculum | Early Hauterivian | Early Hauterivian |
|
Oligosphaeridium sp.B Khow.& Jain,1992 | Hauterivian | Barremian |
|
Oligosphaeridium verrucosum | Hauterivian | Middle Albian |
|
Oligosphaeridium sp.Ab | Hauterivian | Early Albian |
|