basicranium length basicranium length from hormion The length of a basicranium from a hormion to a basion. The measurement number and genus in von den Driesch (1979): 5 Equus, 5 Camelus, 6 Sus. basicranial axis to hormion length post-vomerine length (M4) Equus Sus Camelus to be replaced with external ontology term Helena Machado