Soils have no diagnostic pedogenic horizons are included in soil order

Soils have no diagnostic Pedogenic horizons included in soil order Entisols. Entisols are defined as soils that do not show any profile development other than an A horizon.
An entisol has no diagnostic horizons and is most basically unaltered from its parent material, which can be unconsolidated sediment or rock.
Entisols are the most abundant soil order. Occupying about 16% of the global ice-free land area.