The upper 20 inches of the argillic horizon typically averages between 38 and 45 percent clay with an extreme range of 35 to 50 percent and from 15 to 35 percent fine sand and coarser. Reaction in the upper part of the B horizon ranges from slightly acid to very strongly acid, and from strongly acid to neutral in the lower part. Some pedons have a thin BC horizon. The Bkg horizon has hue of 2.5Y or 5Y, value of 4 or 5, and chroma of 2 to 4. It is loam, clay loam, or silty clay loam.
Reaction is slightly alkaline.
A C horizon is present in some pedons. The Clarinda, Coatsburg and Terrabella soils lack free carbonates in the series control section. Chancellor soils have a mollic epipedon more than 24 inches thick. Crossplain soils have a mean annual soil temperature less than 54 degrees F. Edinburg, Haig, Minnetonka, Virden and Worthing soils do not have rock fragments in the particle size control section. Sampsel soils have soft shale bedrock at depths of 40 to 80 inches.