Australopithecus sediba Hand Demonstrates Mosaic Evolution of Locomotor and Manipulative Abilities
Hand bones from a single individual with a clear taxonomic affiliation are scarce in the hominin fossil record, which has hampered understanding the evolution of manipulative abilities in hominins. Here we describe and analyze a nearly complete wrist and hand of an adult female [Malapa Hominin 2 (MH...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2011-09, Vol.333 (6048), p.1411-1417 |
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| creator | Kivell, Tracy L. Kibii, Job M. Churchill, Steven E. Schmid, Peter Berger, Lee R. |
| description | Hand bones from a single individual with a clear taxonomic affiliation are scarce in the hominin fossil record, which has hampered understanding the evolution of manipulative abilities in hominins. Here we describe and analyze a nearly complete wrist and hand of an adult female [Malapa Hominin 2 (MH2)] Australopithecus sediba from Malapa, South Africa (1.977 million years ago). The hand presents a suite of Australopithecus-like features, such as a strong flexor apparatus associated with arboreal locomotion, and Homo-like features, such as a long thumb and short fingers associated with precision gripping and possibly stone tool production. Comparisons to other fossil hominins suggest that there were at least two distinct hand morphotypes around the Plio-Pleistocene transition. The MH2 fossils suggest that Au. sediba may represent a basal condition associated with early stone tool use and production. |
| doi_str_mv | 10.1126/science.1202625 |
| format | Article |
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Here we describe and analyze a nearly complete wrist and hand of an adult female [Malapa Hominin 2 (MH2)] Australopithecus sediba from Malapa, South Africa (1.977 million years ago). The hand presents a suite of Australopithecus-like features, such as a strong flexor apparatus associated with arboreal locomotion, and Homo-like features, such as a long thumb and short fingers associated with precision gripping and possibly stone tool production. Comparisons to other fossil hominins suggest that there were at least two distinct hand morphotypes around the Plio-Pleistocene transition. 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Here we describe and analyze a nearly complete wrist and hand of an adult female [Malapa Hominin 2 (MH2)] Australopithecus sediba from Malapa, South Africa (1.977 million years ago). The hand presents a suite of Australopithecus-like features, such as a strong flexor apparatus associated with arboreal locomotion, and Homo-like features, such as a long thumb and short fingers associated with precision gripping and possibly stone tool production. Comparisons to other fossil hominins suggest that there were at least two distinct hand morphotypes around the Plio-Pleistocene transition. The MH2 fossils suggest that Au. sediba may represent a basal condition associated with early stone tool use and production.</description><subject>adults</subject><subject>Anatomy & physiology</subject><subject>Animals</subject><subject>Biological Evolution</subject><subject>Biomechanical Phenomena</subject><subject>Bones</subject><subject>Carpal Bones - anatomy & histology</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>evolution</subject><subject>Evolutionary biology</subject><subject>Exact sciences and technology</subject><subject>Female</subject><subject>females</subject><subject>Finger Phalanges - anatomy & histology</subject><subject>Fingers</subject><subject>Flexors</subject><subject>Fossils</subject><subject>gold</subject><subject>Hand - anatomy & histology</subject><subject>Hand - physiology</subject><subject>Hand bones</subject><subject>Hand Bones - anatomy & histology</subject><subject>Hands</subject><subject>Hominidae - anatomy & histology</subject><subject>Hominidae - classification</subject><subject>Hominidae - physiology</subject><subject>Hominids</subject><subject>Humans</subject><subject>Locomotion</subject><subject>Metacarpal Bones - anatomy & histology</subject><subject>Motor ability</subject><subject>Motor Activity</subject><subject>Paleontology</subject><subject>Prehistoric era</subject><subject>South Africa</subject><subject>Stone tools</subject><subject>Thumb</subject><subject>Thumb - anatomy & histology</subject><subject>Tool Use Behavior</subject><subject>Vertebrate paleontology</subject><subject>Wrist</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpd0MGL1DAUBvAgijuunj0pQRC8dPcladLkOKyrK8ziRc_lNU0wQ9uMSbvgf78pU13wFMj3yyPvI-QtgyvGuLrONrjJuivGgSsun5EdAyMrw0E8JzsAoSoNjbwgr3I-ApTMiJfkgjMDQoPakW6_5DnhEE9h_uXskml2feiQ3uHU089ujNOazy7T-5gxWHr7EIdlDnGi0dNDtHGMc0x05fc4hdMy4BweHN13YQhzcPk1eeFxyO7Ndl6Sn19uf9zcVYfvX7_d7A8VCmPmCjtRo1daN8bUPbra6M7bRgrla6Wx6VA23HmloFx3zPSN1dx6D0p5aRslLsmn89xTir8Xl-d2DNm6YcDJxSW3vOxfM1mrlX74jx7jkqbyu1ZrXYwEUdD1GdkUc07Ot6cURkx_Wgbt2n67td9u7ZcX77exSze6_p__W3cBHzeA2eLgE0425CdXSyYkrIPend0xl26fcgEKONfiEW-UmR0</recordid><startdate>20110909</startdate><enddate>20110909</enddate><creator>Kivell, Tracy L.</creator><creator>Kibii, Job M.</creator><creator>Churchill, Steven E.</creator><creator>Schmid, Peter</creator><creator>Berger, Lee R.</creator><general>American Association for the Advancement of Science</general><general>The American Association for the Advancement of Science</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20110909</creationdate><title>Australopithecus sediba Hand Demonstrates Mosaic Evolution of Locomotor and Manipulative Abilities</title><author>Kivell, Tracy L. ; Kibii, Job M. ; Churchill, Steven E. ; Schmid, Peter ; Berger, Lee R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a399t-ab34af6887994dae498bfc7536f468a7ba572ef660bfcb19d7c82cff066f5c763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>adults</topic><topic>Anatomy & physiology</topic><topic>Animals</topic><topic>Biological Evolution</topic><topic>Biomechanical Phenomena</topic><topic>Bones</topic><topic>Carpal Bones - anatomy & histology</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>evolution</topic><topic>Evolutionary biology</topic><topic>Exact sciences and technology</topic><topic>Female</topic><topic>females</topic><topic>Finger Phalanges - anatomy & histology</topic><topic>Fingers</topic><topic>Flexors</topic><topic>Fossils</topic><topic>gold</topic><topic>Hand - anatomy & histology</topic><topic>Hand - physiology</topic><topic>Hand bones</topic><topic>Hand Bones - anatomy & histology</topic><topic>Hands</topic><topic>Hominidae - anatomy & histology</topic><topic>Hominidae - classification</topic><topic>Hominidae - physiology</topic><topic>Hominids</topic><topic>Humans</topic><topic>Locomotion</topic><topic>Metacarpal Bones - anatomy & histology</topic><topic>Motor ability</topic><topic>Motor Activity</topic><topic>Paleontology</topic><topic>Prehistoric era</topic><topic>South Africa</topic><topic>Stone tools</topic><topic>Thumb</topic><topic>Thumb - anatomy & histology</topic><topic>Tool Use Behavior</topic><topic>Vertebrate paleontology</topic><topic>Wrist</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kivell, Tracy L.</creatorcontrib><creatorcontrib>Kibii, Job M.</creatorcontrib><creatorcontrib>Churchill, Steven E.</creatorcontrib><creatorcontrib>Schmid, Peter</creatorcontrib><creatorcontrib>Berger, Lee R.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Ecology Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>AGRICOLA</collection><collection>AGRICOLA - 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Here we describe and analyze a nearly complete wrist and hand of an adult female [Malapa Hominin 2 (MH2)] Australopithecus sediba from Malapa, South Africa (1.977 million years ago). The hand presents a suite of Australopithecus-like features, such as a strong flexor apparatus associated with arboreal locomotion, and Homo-like features, such as a long thumb and short fingers associated with precision gripping and possibly stone tool production. Comparisons to other fossil hominins suggest that there were at least two distinct hand morphotypes around the Plio-Pleistocene transition. The MH2 fossils suggest that Au. sediba may represent a basal condition associated with early stone tool use and production.</abstract><cop>Washington, DC</cop><pub>American Association for the Advancement of Science</pub><pmid>21903806</pmid><doi>10.1126/science.1202625</doi><tpages>7</tpages></addata></record> |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy; MEDLINE |
| subjects | adults Anatomy & physiology Animals Biological Evolution Biomechanical Phenomena Bones Carpal Bones - anatomy & histology Earth sciences Earth, ocean, space evolution Evolutionary biology Exact sciences and technology Female females Finger Phalanges - anatomy & histology Fingers Flexors Fossils gold Hand - anatomy & histology Hand - physiology Hand bones Hand Bones - anatomy & histology Hands Hominidae - anatomy & histology Hominidae - classification Hominidae - physiology Hominids Humans Locomotion Metacarpal Bones - anatomy & histology Motor ability Motor Activity Paleontology Prehistoric era South Africa Stone tools Thumb Thumb - anatomy & histology Tool Use Behavior Vertebrate paleontology Wrist |
| title | Australopithecus sediba Hand Demonstrates Mosaic Evolution of Locomotor and Manipulative Abilities |
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