phytoliths Definition

opal, pollen, presence, types, analysis, diatoms, plants, identification, soils, occurrence, numbers, study, amounts, extraction, form, grains, sediments, abundance, grasses, quantities, diagnostic, spherical, arboreal, few, opaline, distinctive, abundant, short, are, found, recovered, produced, produce, occur, identified, using, observed, contain, extracted, deposited, artifacts, ascospores, bifaces, casts, chloroplasts, clasts, conidia, crystallites, dendrites, ferns, foraminifera, fossils, microvilli, mitochondria, organelles, potsherds, sherds, sporangia, taxa,