ethnolysis

Taking as a model the theory of “genetic centers” of N. I. Vavilov as adapted by Blanc (as a theory of “cosmolysis” or “ethnolysis”), Laplace constructed a theory of basal polymorphism, according to which Upper Palaeolithic industry was initially unspecialized (a “synthetotype,” innate in the designation borrowed from the paleontologists) and afterwards divided up into specialized complexes.