Горѿт
Base of Ludfordian Stage
Ludlow Epoch
Gorstiën
a1.1.3.4.2.2
Gorstian Age
ゴースティアン期
Homerian Age
Wenlock Epoch
Ludfordian Age
gorstiano
older bound -427.4 +|-0.5 Ma
gorsti
younger bound -425.6 +|-0.9 Ma
gorstij
Gorstium
Gorstium
Gorsti
Phanerozoic Eon
International Chronostratigraphic Chart (2017)
gorst
gorst
Paleozoic Era
Gorstien
Gorstien
Gorst
Gorst
Gorst
格斯特期
Base of Ludlow
Gorstian
Gorstiano
Gorstiense
Silurian Period
Gorstis