ANT 350 Lecture Notes - Lecture 14: Laetoli, Iliac Crest, Femur Neck
Document Summary
Comparative anatomy and genetics how that humans are more closely related to african great apes (esp. Hypothesis 1: the earliest definite humans will be found in africa. Hypothesis 2: the earliest definite humans will demonstrate a mosaic of ape and human features. Lucy (al 288-1: 40% of a small female. Os (cid:272)o(cid:454)ae a(cid:374)d sa(cid:272)ru(cid:373) = fu(cid:374)da(cid:373)e(cid:374)tal (cid:271)iped (cid:271)ut : slightly longer ilium, posterior facing iliac blade, weak iliopsoas groove, greater iliac flare. Fe(cid:373)ur = totall(cid:455) ho(cid:373)i(cid:374)i(cid:374) (cid:271)ut : higher bicondylar angle, longer femoral neck, smaller femoral head. Pes = totally hominin except that toes 2-5 are longer and slightly curved: laetoli footprints (1976-77) Site g preserved by volcanic activity three sets of prints. G-2 = 2 individuals superimposed, one larger. Hominin foot pattern arches, non-divergent hallux, deep heel strike and toe- off. Manus phalanges longer and more curved (intermediate) Shoulder scapula: glenoid = more cranially angled, scapular spine = more oblique. Limb proportions humeral/femoral index: apes: 98-135, lucy: 85.
