 Testing in order to try to understand the molecular phylogeny of the Conidae was initially begun by Christopher Meyer and Alan Kohn, and is continuing, particularly with the advent of nuclear DNA testing in addition to mDNA testing.In 2009, J.K. Tucker and M.J. Tenorio proposed a classification system consisting of three distinct families and 82 genera for the living species of cone snails.This classification was based on shell morphology, radular differences, anatomy, physiology, and cladistics, with comparisons to molecular (DNA) studies.