Genus Yolkinigymnium

Species total:
5
Age range:
94 - 54.5 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Yolkinigymnium Late Campanian Early Maastrichtian
Yolkinigymnium elongatum Late Campanian Danian
Yolkinigymnium expansum Early Maastrichtian Early Maastrichtian
Yolkinigymnium lanceolatum Turonian Paleocene
Yolkinigymnium sp Late Maestrichtian Late Maestrichtian