Barrington, Elkhart, Mendota, and Saybrook soils have thinner sola and free carbonates within a depth of 40 inches. Broadwell soils contain more sand in the lower part of the solum. Catlin and Plano soils fromed in more than 40 inches of silty material. Cotter, Reading, and Troxel soils have mollic epipedons more than 24 inches thick. Dana soils have gray mottles in the lower part of the solum.
Dinsdale soils have thinner Bt horizons.
Douglas, Harrison, Healing, Tama, and Wiota soils have less sand and gravel in the lower part of the sola and do not have 2B horizons. Ogle soils have redder hue in the lower part of the sola. Proctor and Richwood soils formed in stratified silty sediments, and do not have 3B horizons. Toddville and Wiota soils formed in silty alluvial sediments and have less sand in the lower part of the sola. Waupecan soils contain more gravel in the lower part of the sola and in the C horizon.