Formula:Systemata stratigraphica
Appearance
Systemata = Periodi geologicae
Siderium•Rhyacium•Orosirium•Statherium•Calymmium•Ectasium•Stenium•Tonium•Cryogenium•Ediacarium•Cambrium•Ordovicium•Silurium•Devonium•Carboniferum•Permium•Triassicum•Iurassicum•Cretaceum•Palaeogenicum•Neogenicum•Quaternarium Capsae cognatae:Aeones•Aerae•Periodi•Epochae•Aetatesgeologicae =Aeonothemata•Aerathemata•Systemata•Series•Stadiastratigraphica | |