Concretions and soft masses of calcium carbonate range from common to many. Texture is clay, silty clay, or clay loam. The C horizon is in shades of olive, brown, or gray. It is weathered shale or interbedded shale with clayey and loamy soil materials. Concretions and soft masses of calcium carbonates range from few to common.
Carbonates usually decrease with depth and are absent in some pedons.
There are no series in the same family. Closely similar soils are Austin , Bolar , Brenham , Chatt , Clark , Denton , Doss , Engle , Lewisville , Nuff , Nuvalde , Owens , Purves , Quanah , Somervell , and Venus series. Brenham soils formed in Tertiary age materials and receive more annual precipitation. Also, these soils have warmer mean annual temperatures. Denton soils have a lithic contact of limestone at a depth of 40 to 60 inches.