Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living superspecific taxa of Chondrichthyan fishes. Part A: Selachii. No. 3: Order: Squaliformes - Families: Echinorhinidae, Oxynotidae and Squalidae. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Biologie, 59, 101–158
