geological time

chronological dating that classifies geological strata

en-GB/ˌd͡ʒɪəˈlɒd͡ʒɪkl ˈtaɪm/
en-US/ˌd͡ʒiəˈlɑd͡ʒɪkəl ˈtaɪm/

دسته بندی ها:

timetimeline