Fig. 3: EDJ morphology of teeth.
From: Early hominins from Morocco basal to the Homo sapiens lineage
Principal component (PC) analyses of EDJ shape variation for the first (top left) and second (top right) deciduous molars, the mandibular fourth premolar (middle left), the maxillary fourth premolar (middle right), the first mandibular molar (bottom left) and the third mandibular molar (bottom right). Shape is captured using 3D landmarks on the primary cusps and marginal ridge of the EDJ and, in the case of the the fourth premolars and third mandibular molar, also the cervix (partial EDJ ridge means that only the unworn portion of the marginal ridge was analysed). For each tooth position, the ThI-GH teeth fall outside and adjacent to our samples of Neanderthals and H. sapiens. Fossil H. sapiens (H. sap), MP hominins and H. antecessor specimens are identified individually by accession number. H. erectus is identified by H. ere and H. neanderthalensis by H. nea.
