International Chronostratigraphic Chart (2017)
Eocene Epoch
Ypresian Age
Paleocene Epoch
Ipr
ypresij
Ypresiën
Base of Eocene
Ypris
Ypres
Ypres
Ypres
Yprésien
ypresi
Ypresiense
ypres
ypres
younger bound -47.8 Ma
Phanerozoic Eon
Ypresien
Lutetian Age
Ipresiano
Thanetian Age
older bound -56 Ma
Paleogene Period
Ypresi
Ypresian
Ypersium
伊普雷斯期
イプレシアン期
Cenozoic Era
Ипреѿ
a1.1.1.3.2.4
Base of Lutetian
ypresiano