Genus Gerdiocysta

Species total:
7
Age range:
68.5 - 22.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Gerdiocysta Late Eocene Oligocene
Gerdiocysta aciculata Early Eocene Stampian
Gerdiocysta cassiculus Maastrichtian Early Eocene
Gerdiocysta conopeum Eocene Late Chattian
Gerdiocysta sp Thanetian Early Oligocene
Gerdiocysta sp.1 Middle Eocene Middle Eocene
Gerdiocysta sp.2 Middle Eocene Middle Eocene