Stratigraphic scale
stage
duration
historical geology
19th century
20th century
Échelle stratigraphique
corrélation
étage
biozone
stratotypes
durée
géologie historique
XIXe siècle
XXe siècle
[SHS.HISPHILSO] Humanities and Social Sciences/History, Philosophy and Sociology of Sciences
[SDU.STU] Sciences of the Universe/Earth Sciences
