Genus Pentagonum

Species total:
7
Age range:
76 - 22.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Pentagonum Paleocene Paleocene
Pentagonum conicoides Paleocene Paleocene
Pentagonum granulatum Late Eocene Late Eocene
Pentagonum huanghuaense Late Eocene Late Oligocene
Pentagonum marginatum Early Paleocene Danian
Pentagonum sibiricum Campanian Early Eocene
Pentagonum sp Early Oligocene Middle Oligocene