The long limb bones of the StW 573 Australopithecus skeleton from Sterkfontein Member 2: Descriptions and proportions.

  title={The long limb bones of the StW 573 Australopithecus skeleton from Sterkfontein Member 2: Descriptions and proportions.},
  author={Jason L. Heaton and Travis Rayne Pickering and Kristian J. Carlson and Robin H. Crompton and Tea Jashashvili and Am{\'e}lie Beaudet and Laurent Bruxelles and Kathleen Kuman and A.J. Heile and Dominic Stratford and Ronald J. Clarke},
  journal={Journal of human evolution},

Homoplasy in the evolution of modern human-like joint proportions in Australopithecus afarensis

The results support an emerging perspective in hominin paleobiology that A. afarensis was the most terrestrially adapted australopith despite the importance of arboreality throughout much of early hom inin evolution.

Repetition Without Repetition: A Comparison of the Laetoli G1, Ileret, Namibian Holocene and Modern Human Footprints Using Pedobarographic Statistical Parametric Mapping

It is traditionally held that early hominins of the genusAustralopithecushad a foot transitional in function between that of the other great apes and our own but that the appearance of genusHomowas

Postcranial evidence of late Miocene hominin bipedalism in Chad.

Postcranial evidence of the locomotor behaviour of Sahelanthropus tchadensis is presented, with new insights into bipedalism at the early stage of hominin evolutionary history, and it is suggested that arboreal clambering was probably a significant part of their locomotor repertoire.

Morphological correlates of distal fibular morphology with locomotion in great apes, humans, and Australopithecus afarensis

Abstract Objectives Recent studies highlighted the importance of the fibula to further our understanding of locomotor adaptations in fossil hominins. In this study, we present a three‐dimensional

Evidence for habitual climbing in a Pleistocene hominin in South Africa

Evidence for habitual use of highly flexed hip postures, which could potentially indicate regular climbing in a South African hominin from Sterkfontein, which is either Paranthropus robustus or Homo, is shown.

The atlas of StW 573 and the late emergence of human-like head mobility and brain metabolism

Assessment of the cross-sectional areas of the transverse foramina of the atlas and the left carotid canal in StW 573 further suggests there may have been lower metabolic costs for cerebral tissues in this hominin than have been attributed to extant humans and may support the idea that blood perfusion of these tissues increased over the course of hom inin evolution.

Hominin lower limb bones from Sterkfontein Caves, South Africa (1998–2003 excavations)

FUNDING: University of Wisconsin-Madison, South African National Research Foundation We describe late Pliocene and early Pleistocene hominin fossils from Sterkfontein Caves (South Africa), including



Lucy's limbs: skeletal allometry and locomotion in Australopithecus afarensis

The data indicate that A. afarensis had already attained forelimb proportions similar to those of modern humans but possessed hindlimbs that were relatively much shorter; hence the ‘intermediate’ humerofemoral index of AL 288-1 compared with Homo sapiens and great apes.

Forelimb segment length proportions in extant hominoids and Australopithecus afarensis.

  • M. DrapeauC. Ward
  • Biology, Environmental Science
    American journal of physical anthropology
  • 2007
Pan species are unique in having long metacarpals relative to ulnar length, demonstrating that they probably differ from the common chimp-human ancestor, and also that developmental mechanisms can be altered to results in differential growth of individual forelimb segments.

Functional Anatomy, Biomechanical Performance Capabilities and Potential Niche of StW 573: an Australopithecus Skeleton (circa 3.67 Ma) From Sterkfontein Member 2, and its significance for The Last Common Ancestor of the African Apes and for Hominin Origins

Modelling studies on extant primates indicate that the intermembral index of StW 573, low for a non-human great ape, would have substantially enhanced economy of bipedal walking over medium-to-long distances, but that it was still too high for effective walking while load-carrying.

Body proportions of Australopithecus afarensis and A. africanus and the origin of the genus Homo.

New discoveries of A. africanus fossils from Member 4 Sterkfontein reveal a body form quite unlike earlier Australopithecus species, and postcranial material reveals an apparently primitive morphology of relatively large forelimb and small hindlimb joints resembling more the pongid than the human pattern.

Body proportions of Homo habilis reviewed.

Hominin vertebrae and upper limb bone fossils from Sterkfontein Caves, South Africa (1998-2003 excavations).

The new fossil collection presents a mix of bipedal and climbing features, and it is unclear whether this mix indicates that all Sterkfontein hominins of >2.0 Ma were terrestrial bipeds who retained adaptations for climbing or whether the collection samples two differently adapted, coeval hom inins.