The A, AP, and ABss horizons have moist values of 2 or 3. Texture is clay loam or clay. The BAss horizon has hue of 10YR or 2.5Y, moist value of 3 through 5, and chroma of 2 through 4. Texture is clay. The Bss horizon has hue of 10YR or 2.5Y, moist value of 4 or 5, and chroma of 3 through 6.
Texture is clay.
The Santa Isabel series is the only known series in the same family. Santa Isabel soils are on similar positions but are not calcareous in any part. Fraternidad soils are on coastal plains. They formed in clayey sediments derived from volcanic rocks and limestone. The climate is tropical semiarid.