Genus Ulvella

Species total:
5
Age range:
141 - 54.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Ulvella lutosa Eocene Eocene
Ulvella microthyrioides Nd Nd
Ulvella nannae Cretaceous Paleocene
Ulvella pertusa Eocene Eocene
Ulvella spinulata Eocene Eocene