[<< wiktionary] ordoviikkikausi
== Finnish ==


=== Alternative forms ===
ordovikikausi


=== Etymology ===
ordoviikki +‎ kausi


=== Noun ===
ordoviikkikausi

Ordovician, Ordovician period (geological period)


==== Usage notes ====
This spelling seems to be getting rarer with current users preferring the form ordovikikausi.


==== Declension ====