Genus Gemmastephanoporites

Species total:
3
Age range:
65 - 37.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Gemmastephanoporites Tertiary Tertiary
Gemmastephanoporites breviculus Eocene Bartonian
Gemmastephanoporites polymorphus Early Eocene Priabonian