S₁T₁R₁A₁T₁I₁G₂R₁A₁P₃H₄E₁R₁S₁

20 points

STRATIGRAPHERS is validvalid

STRATIGRAPHER, one that studies strata [n]

191,827 of 196,601 in NWL2023·also valid in CSW24

STRATIGRAPHER, a practitioner of stratigraphy, also STRATIGRAPHIST [n]

236,072 of 280,887 in CSW24·also valid in NWL2023