Calcarosol are soils that are calcareous throughout the soil profile below the A horizon. These are some of the most widely distributed soils in Australia, being one of the most common soil orders, particularly along the south coast line.
http://www.asris.csiro.au/themes/Atlas.html )
Calcarosols sub-order is based on the type and extent of carbonate in the soil profile.
The decision tree for Calcarosols sub-order, great groups and sub-group is here.
Please note that there is no great group or sub-group for Shelly Calcarosols or HyperGypsis Calcarosols.
SoilSarah 