Terric Mesisol (T.M)
Common horizon sequence: Of, Om or Oh, Om, C, Om
Soils of this subgroup have the general properties specified for the Organic order and the Mesisol great group. They differ from Typic Mesisols by having a terric layer (an unconsolidated mineral layer at least 30 cm thick) beneath the surface tier. They may also have cumulic or limnic layers, but they do not have fibric, humic, or hydric layers within the control section.
Note: Diagnostic horizons are underlined.