Genus Cyclusphaera

Species total:
12
Age range:
174 - 5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Cyclusphaera Cretaceous Oligocene
Cyclusphaera crassa Cretaceous Cretaceous
Cyclusphaera doubingeri Late Eocene Early Miocene
Cyclusphaera euribei Cenomanian Miocene
Cyclusphaera intacta Neocomian Senonian
Cyclusphaera patagonica Cretaceous Early Albian
Cyclusphaera psilata Middle Jurassic Early Turonian
Cyclusphaera radiata Cretaceous Cenomanian
Cyclusphaera sp Early Cretaceous Early Turonian
Cyclusphaera sp.A Early Cretaceous Early Albian
Cyclusphaera sp.A Volk.et al,1977 Hauterivian Barremian
Cyclusphaera sutschanica Late Hauterivian Barremian