title: The diet of Australopithecus sediba.
abstract: Specimens of Australopithecus sediba from the site of Malapa, South Africa (dating from approximately 2 million years (Myr) ago) present a mix of primitive and derived traits that align the taxon with other Australopithecus species and with early Homo. Although much of the available cranial and postcranial material of Au. sediba has been described, its feeding ecology has not been investigated. Here we present results from the first extraction of plant phytoliths from dental calculus of an early hominin. We also consider stable carbon isotope and dental microwear texture data for Au. sediba in light of new palaeoenvironmental evidence. The two individuals examined consumed an almost exclusive C(3) diet that probably included harder foods, and both dicotyledons (for example, tree leaves, fruits, wood and bark) and monocotyledons (for example, grasses and sedges). Like Ardipithecus ramidus (approximately 4.4 Myr ago) and modern savanna chimpanzees, Au. sediba consumed C(3) foods in preference to widely available C(4) resources. The inferred consumption of C(3) monocotyledons, and wood or bark, increases the known variety of early hominin foods. The overall dietary pattern of these two individuals contrasts with available data for other hominins in the region and elsewhere.
authors: Plant Foods and Hominin Dietary Ecology Research Group, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, 04103 Leipzig, Germany. amanda_henry@eva.mpg.de
authors: Amanda G
authors: AG
authors: Henry
authors: Peter S
authors: PS
authors: Ungar
authors: Benjamin H
authors: BH
authors: Passey
authors: Matt
authors: M
authors: Sponheimer
authors: Lloyd
authors: L
authors: Rossouw
authors: Marion
authors: M
authors: Bamford
authors: Paul
authors: P
authors: Sandberg
authors: Darryl J
authors: DJ
authors: de Ruiter
authors: Lee
authors: L
authors: Berger
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002247:Carbon Isotopes; D004032:Diet / Q000266:history / Q000662:veterinary*; D005518:Food Preferences; D005580:Fossils; D017276:Friction; D005638:Fruit; D049690:History, Ancient; D015186:Hominidae / Q000033:anatomy & histology / Q000502:physiology; D024301:Plant Bark; D018515:Plant Leaves; D055110:Radiometric Dating; D013019:South Africa; D013499:Surface Properties; D014070:Tooth / Q000033:anatomy & histology; D014197:Trees; D014934:Wood
chemical_list: D002247:Carbon Isotopes