O₁L₁I₁G₂O₁C₃E₁N₁E₁

12 points

OLIGOCENE is validvalid

pertaining to the third geologic epoch of the Tertiary period [adj]

107,071 of 196,601 in NWL2023·also valid in CSW24

belonging to a certain geological time period [adj]

163,310 of 280,887 in CSW24·also valid in NWL2023