sourceTaxonName: Sphaerium
sourceTaxonPath: Animalia | Mollusca | Bivalvia | Sphaeriida | Sphaeriidae | Sphaerium
targetTaxonName: mud inside a dead bivalve shell
localityName: St. Louis/Jefferson Co. line, 3.9 mi. SSW of Sappington, 3.5 mi. W of Mattese, 2.6 mi. SSE of Fenton, Meramec River, 1.2 mi. N of SR21 bridge