Genus Stephanospermum

Species total:
6
Age range:
345 - 1.8 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Stephanospermum Nd Nd
Stephanospermum akenioides Carboniferous Carboniferous
Stephanospermum caryoides Paleogene Neogene
Stephanospermum costatum Early Pennsylvanian Early Pennsylvanian
Stephanospermum ovoides Middle Pennsylvanian Middle Pennsylvanian
Stephanospermum sp Middle Pennsylvanian Middle Pennsylvanian