Skeletogenic cell that is typically non-terminally differentiated, secretes an avascular, GAG rich matrix; is not buried in cartilage tissue matrix, retains the ability to divide, located adjacent to cartilage tissue (including within the perichondrium), and develops from prechondroblast (and thus prechondrogenic) cell. [ http://purl.obolibrary.org/obo/go/references/0000034 https://www.worldcat.org/search?q=bn%3A0618947256 ]