sourceTaxonName: undet. Ostreoida
sourceTaxonPath: Animalia | Mollusca | Bivalvia | Ostreoida
localityName: various layers in road cut on E side of spur and on W side of old US 12 about .75 mi S of intersection with Wakpala road, N side of hill with Ridgeview 1954 bench mark, and 4.5 mi S of Mahto