Genus Semitectotriporites

Species total:
3
Age range:
68.5 - 37.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Semitectotriporites Middle Eocene Middle Eocene
Semitectotriporites gratus Maastrichtian Middle Eocene
Semitectotriporites ratariaensis Middle Eocene Late Eocene