Genus Heptasphaera

Species total:
4
Age range:
123 - 103.33 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Heptasphaera Hauterivian Early Albian
Heptasphaera michaelii Hauterivian Barremian
Heptasphaera paulaworstellae Nd Nd
Heptasphaera paulaworstelliae Nd Nd