Genus Cirrusphaera

Species total:
3
Age range:
141 - 117 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Cirrusphaera Middle Berriasian Middle Berriasian
Cirrusphaera dissimilis Berriasian Late Berriasian
Cirrusphaera sp Late Valanginian Hauterivian