sourceTaxonName: undet. Gastropoda
sourceTaxonPath: Animalia | Mollusca | Gastropoda
localityName: layered, barrel-shaped conc. (upper Gervillia part =26f and lower Limopsis part = 26g), E-facing bluff of sharp ridge on W bank of Grand River at E-W part of bend, 2.5 mi S of Bullhead