Genus Surculosphaeridium

Species total:
32
Age range:
230 - 0 MA (obsolete dating)
IRMNG:
find
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