Complex sentence: Further refinement of the formations age using radiomatric dating of sanidine crystals has resulted in an age of 34 million years old, which places the formation in the Eocene Priabonian stage.
Split into simpler sentences: Further refinement of the formations age using radiomatric dating of sanidine crystals has resulted in an age of 34 million years old. This places the formation in the Eocene Priabonian stage.