Re: Clayey-skeletal vertisols

Clayey-skeletal is a very unusual, but legitimate family classification for Vertisols. There are some old validations from the 1990's in our databases (e.g. NASIS, OSD) that block this combination. It was probably just overlooked as a possibility. I've asked to have those updated to allow for a clayey-skeletal vertisols combination. The fix will come out in the next release of NASIS.