Name | From | To | Age range |
---|---|---|---|
Surculosphaeridium sp. Guer.,1990 | Eocene | Eocene |
|
Surculosphaeridium sp. Head & Norr.,1989 | Oligocene | Oligocene |
|
Surculosphaeridium sp. Kuma.& Saxe.,1996 | Late Santonian | Early Campanian |
|
Surculosphaeridium sp. Xu et al,1997 | Middle Eocene | Late Eocene |
|
Surculosphaeridium sp.1 | Early Cretaceous | Early Cretaceous |
|
Surculosphaeridium sp.2 | Late Quaternary | Late Quaternary |
|
Surculosphaeridium sp.A | Early Oxfordian | Early Oxfordian |
|
Surculosphaeridium sp.I Dave.,1982 | Middle Volgian | Aptian |
|
Surculosphaeridium sp.II Dave.,1982 | Ryazanian | Early Valanginian |
|
Surculosphaeridium sp.III Dave.,1982 | Late Volgian | Early Hauterivian |
|
Surculosphaeridium spinicongregatum | Nd | Nd |
|
Surculosphaeridium spinocongregatum | Early Cenomanian | Middle Coniacian |
|
Surculosphaeridium suggestium | Santonian | Campanian |
|
Surculosphaeridium trunculum | Valanginian | Early Cenomanian |
|
Surculosphaeridium vestitum | Late Bajocian | Cretaceous |
|