Lufeng Formation
The Lufeng Formation ( formerly Lower Lufeng Series ) is a Lower Jurassic sedimentary rock formation found in Yunnan , China . 
<triplet> Lufeng Formation <subj> rock formation <obj> instance of <subj> China <obj> country <triplet> Yunnan <subj> China <obj> country <triplet> China <subj> Yunnan <obj> contains administrative territorial entity