S1T1R1A1T1I1G2R1A1P3H4I1C3
21 points
STRATIGRAPHIC is validvalid
pertaining to stratigraphy
relating to stratigraphy, the study of geological layers or strata, also STRATIGRAPHICAL
pertaining to stratigraphy
relating to stratigraphy, the study of geological layers or strata, also STRATIGRAPHICAL