Late MSA Moroccan mandibles mix archaic and modern traits filling gap between Jebel Irhoud and Iberomaurusians. Aterians show mandibular shape similarities to Tighenif and Thomas Quarry hominins. North Africa hosts long-term hominin succession as earliest H. sapiens source. Iberomaurusians and Aterians share size range with early H. sapiens exceeding later groups. Early H. sapiens overlap archaic hominins and Neanderthals in mandibular shape. Tighenif mandibles distinct from Neanderthals plotting near Iberomaurusians. Dar-es-Soltane II 5 closest to Neanderthals in shape due to large size. Kébibat mandible joins transition from archaic to modern North African populations. Aterians exhibit accretion of modern traits non-linearly through time. Masticatory gracilization reduces mandibular size from Middle Pleistocene to Holocene. Iberomaurusian mandibles distinct from penecontemporaneous sub-Saharan specimens. El Harhoura mandible links to Jebel Sahaba sub-Saharans. North African fossils resemble Natufians and Upper Paleolithic Europeans. Aterians chronologically align with early H. sapiens showing allometric Neanderthal-like features from size. Regional continuity in Maghreb exceeds prior estimates despite archaeological hiatus.