There are no series in the same family, and the Billyhaw , Brazoria , Morse , Naclina , Tahoula , Vamont , and Zilaboy series. Bayoudan soils are more acid and have By horizons. Burkeville soils are calcareous throughout and lack red mottles. Lacerda and Redco soils are more acid. In addition, Lacerda soils lack free carbonates within 60 inches.
Lebeau soils have upper sola that are more acid, and have a grayer matrix.
Billyhaw, Brazoria, Morse, and Tahoula soils lack grayish mottles due to wetness. Naclina, Vamont, and Zilaboy soils are in a fine family. In addition, Vamont soils lack carbonates. Dylan soils are on gently sloping to sloping uplands. The soils formed in clayey alluvium and are along stream terraces.