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  • 1
    Publication Date: 2015-10-08
    Description: Article Hominin fossils reveal high diversity in the types of terrestrial bipedalism. Here, the authors show that the foot of Homo naledi from South Africa is predominantly human-like in morphology and inferred function and is well adapted for striding bipedalism. Nature Communications doi: 10.1038/ncomms9432 Authors: W. E. H. Harcourt-Smith, Z. Throckmorton, K. A. Congdon, B. Zipfel, A. S. Deane, M. S. M. Drapeau, S. E. Churchill, L. R. Berger, J. M. DeSilva
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 2
    Publication Date: 2011-09-10
    Description: The fossil record of the hominin pelvis reflects important evolutionary changes in locomotion and parturition. The partial pelves of two individuals of Australopithecus sediba were reconstructed from previously reported finds and new material. These remains share some features with australopiths, such as large biacetabular diameter, small sacral and coxal joints, and long pubic rami. The specimens also share derived features with Homo, including more vertically oriented and sigmoid-shaped iliac blades, greater robusticity of the iliac body, sinusoidal anterior iliac borders, shortened ischia, and more superiorly oriented pubic rami. These derived features appear in a species with a small adult brain size, suggesting that the birthing of larger-brained babies was not driving the evolution of the pelvis at this time.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kibii, Job M -- Churchill, Steven E -- Schmid, Peter -- Carlson, Kristian J -- Reed, Nichelle D -- de Ruiter, Darryl J -- Berger, Lee R -- New York, N.Y. -- Science. 2011 Sep 9;333(6048):1407-11. doi: 10.1126/science.1202521. Epub 2011 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Evolution, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903805" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Biomechanical Phenomena ; Brain/anatomy & histology ; Female ; *Fossils ; Hominidae/*anatomy & histology/physiology ; Humans ; Ilium/anatomy & histology ; Ischium/anatomy & histology ; Locomotion ; Male ; Parturition ; Pelvic Bones/*anatomy & histology ; Pelvis/*anatomy & histology ; Pubic Bone/anatomy & histology ; Sacrum/anatomy & histology ; South Africa
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2011-09-10
    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.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kivell, Tracy L -- Kibii, Job M -- Churchill, Steven E -- Schmid, Peter -- Berger, Lee R -- New York, N.Y. -- Science. 2011 Sep 9;333(6048):1411-7. doi: 10.1126/science.1202625. Epub 2011 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig 04103, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903806" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Biomechanical Phenomena ; Carpal Bones/anatomy & histology ; Female ; Finger Phalanges/anatomy & histology ; *Fossils ; Hand/*anatomy & histology/physiology ; Hand Bones/*anatomy & histology ; Hominidae/*anatomy & histology/classification/physiology ; Humans ; Locomotion ; Metacarpal Bones/anatomy & histology ; Motor Activity ; South Africa ; Thumb/anatomy & histology ; Tool Use Behavior
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2013-04-13
    Description: Since the announcement of the species Australopithecus sediba, questions have been raised over whether the Malapa fossils represent a valid taxon or whether inadequate allowance was made for intraspecific variation, in particular with reference to the temporally and geographically proximate species Au. africanus. The morphology of mandibular remains of Au. sediba, including newly recovered material discussed here, shows that it is not merely a late-surviving morph of Au. africanus. Rather-as is seen elsewhere in the cranium, dentition, and postcranial skeleton-these mandibular remains share similarities with other australopiths but can be differentiated from the hypodigm of Au. africanus in both size and shape as well as in their ontogenetic growth trajectory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Ruiter, Darryl J -- DeWitt, Thomas J -- Carlson, Keely B -- Brophy, Juliet K -- Schroeder, Lauren -- Ackermann, Rebecca R -- Churchill, Steven E -- Berger, Lee R -- New York, N.Y. -- Science. 2013 Apr 12;340(6129):1232997. doi: 10.1126/science.1232997.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anthropology, Texas A&M University, College Station, TX 77843, USA. deruiter@tamu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23580533" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Dentition ; Female ; *Fossils ; Hominidae/*anatomy & histology/*classification/growth & development ; Male ; Mandible/*anatomy & histology/growth & development ; Paleodontology ; South Africa ; Tooth/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2010-04-10
    Description: Despite a rich African Plio-Pleistocene hominin fossil record, the ancestry of Homo and its relation to earlier australopithecines remain unresolved. Here we report on two partial skeletons with an age of 1.95 to 1.78 million years. The fossils were encased in cave deposits at the Malapa site in South Africa. The skeletons were found close together and are directly associated with craniodental remains. Together they represent a new species of Australopithecus that is probably descended from Australopithecus africanus. Combined craniodental and postcranial evidence demonstrates that this new species shares more derived features with early Homo than any other australopith species and thus might help reveal the ancestor of that genus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berger, Lee R -- de Ruiter, Darryl J -- Churchill, Steven E -- Schmid, Peter -- Carlson, Kristian J -- Dirks, Paul H G M -- Kibii, Job M -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):195-204. doi: 10.1126/science.1184944.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Evolution, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa. profleeberger@yahoo.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378811" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Body Size ; Bone and Bones/anatomy & histology ; Dentition ; Female ; *Fossils ; Hominidae/anatomy & histology/*classification ; Male ; Mandible/anatomy & histology ; Skeleton ; Skull/anatomy & histology ; South Africa
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2010-04-10
    Description: We describe the geological, geochronological, geomorphological, and faunal context of the Malapa site and the fossils of Australopithecus sediba. The hominins occur with a macrofauna assemblage that existed in Africa between 2.36 and 1.50 million years ago (Ma). The fossils are encased in water-laid, clastic sediments that were deposited along the lower parts of what is now a deeply eroded cave system, immediately above a flowstone layer with a U-Pb date of 2.026 +/- 0.021 Ma. The flowstone has a reversed paleomagnetic signature and the overlying hominin-bearing sediments are of normal polarity, indicating deposition during the 1.95- to 1.78-Ma Olduvai Subchron. The two hominin specimens were buried together in a single debris flow that lithified soon after deposition in a phreatic environment inaccessible to scavengers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dirks, Paul H G M -- Kibii, Job M -- Kuhn, Brian F -- Steininger, Christine -- Churchill, Steven E -- Kramers, Jan D -- Pickering, Robyn -- Farber, Daniel L -- Meriaux, Anne-Sophie -- Herries, Andy I R -- King, Geoffrey C P -- Berger, Lee R -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):205-8. doi: 10.1126/science.1184950.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Earth and Environmental Sciences, James Cook University, Townsville, QLD 4811, Australia. paul.dirks@jcu.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378812" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Fossils ; *Geologic Sediments ; Geological Phenomena ; *Hominidae ; Radiometric Dating ; South Africa
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2011-09-10
    Description: A well-preserved and articulated partial foot and ankle of Australopithecus sediba, including an associated complete adult distal tibia, talus, and calcaneus, have been discovered at the Malapa site, South Africa, and reported in direct association with the female paratype Malapa Hominin 2. These fossils reveal a mosaic of primitive and derived features that are distinct from those seen in other hominins. The ankle (talocrural) joint is mostly humanlike in form and inferred function, and there is some evidence for a humanlike arch and Achilles tendon. However, Au. sediba is apelike in possessing a more gracile calcaneal body and a more robust medial malleolus than expected. These observations suggest, if present models of foot function are correct, that Au. sediba may have practiced a unique form of bipedalism and some degree of arboreality. Given the combination of features in the Au. sediba foot, as well as comparisons between Au. sediba and older hominins, homoplasy is implied in the acquisition of bipedal adaptations in the hominin foot.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zipfel, Bernhard -- DeSilva, Jeremy M -- Kidd, Robert S -- Carlson, Kristian J -- Churchill, Steven E -- Berger, Lee R -- New York, N.Y. -- Science. 2011 Sep 9;333(6048):1417-20. doi: 10.1126/science.1202703. Epub 2011 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute for Human Evolution, University of the Witwatersrand, Post Office Wits, 2050 Wits, South Africa. bernhard.zipfel@wits.ac.za〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903807" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ankle/*anatomy & histology/physiology ; Ankle Joint/anatomy & histology/physiology ; Biological Evolution ; Biomechanical Phenomena ; Calcaneus/anatomy & histology ; Female ; Foot/*anatomy & histology/physiology ; Foot Bones/*anatomy & histology ; Foot Joints/anatomy & histology/physiology ; *Fossils ; Hominidae/*anatomy & histology/physiology ; Humans ; Locomotion ; Male ; Metatarsal Bones/anatomy & histology ; South Africa ; Talus/anatomy & histology ; Tarsal Bones/*anatomy & histology ; Tibia/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2013-04-13
    Description: The evolution of the human upper limb involved a change in function from its use for both locomotion and prehension (as in apes) to a predominantly prehensile and manipulative role. Well-preserved forelimb remains of 1.98-million-year-old Australopithecus sediba from Malapa, South Africa, contribute to our understanding of this evolutionary transition. Whereas other aspects of their postcranial anatomy evince mosaic combinations of primitive (australopith-like) and derived (Homo-like) features, the upper limbs (excluding the hand and wrist) of the Malapa hominins are predominantly primitive and suggest the retention of substantial climbing and suspensory ability. The use of the forelimb primarily for prehension and manipulation appears to arise later, likely with the emergence of Homo erectus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Churchill, Steven E -- Holliday, Trenton W -- Carlson, Kristian J -- Jashashvili, Tea -- Macias, Marisa E -- Mathews, Sandra -- Sparling, Tawnee L -- Schmid, Peter -- de Ruiter, Darryl J -- Berger, Lee R -- New York, N.Y. -- Science. 2013 Apr 12;340(6129):1233477. doi: 10.1126/science.1233477.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, USA. churchy@duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23580536" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Arm Bones/anatomy & histology ; Biological Evolution ; Biomechanical Phenomena ; Bones of Upper Extremity/*anatomy & histology/physiology ; Clavicle/anatomy & histology ; Female ; *Fossils ; Hominidae/*anatomy & histology/*physiology ; Humans ; Locomotion ; Male ; Principal Component Analysis ; Scapula/anatomy & histology ; South Africa ; Upper Extremity/*anatomy & histology/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2013-04-13
    Description: The shape of the thorax of early hominins has been a point of contention for more than 30 years. Owing to the generally fragmentary nature of fossil hominin ribs, few specimens have been recovered that have rib remains complete enough to allow accurate reassembly of thoracic shape, thus leaving open the question of when the cylindrical-shaped chest of humans and their immediate ancestors evolved. The ribs of Australopithecus sediba exhibit a mediolaterally narrow, ape-like upper thoracic shape, which is unlike the broad upper thorax of Homo that has been related to the locomotor pattern of endurance walking and running. The lower thorax, however, appears less laterally flared than that of apes and more closely approximates the morphology found in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmid, Peter -- Churchill, Steven E -- Nalla, Shahed -- Weissen, Eveline -- Carlson, Kristian J -- de Ruiter, Darryl J -- Berger, Lee R -- New York, N.Y. -- Science. 2013 Apr 12;340(6129):1234598. doi: 10.1126/science.1234598.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland. smidi@aim.uzh.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23580537" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Female ; *Fossils ; Hominidae/*anatomy & histology/*physiology ; Humans ; Locomotion ; Male ; Respiration ; Ribs/*anatomy & histology ; South Africa ; Thorax/*anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 2013-04-13
    Description: Two partial vertebral columns of Australopithecus sediba grant insight into aspects of early hominin spinal mobility, lumbar curvature, vertebral formula, and transitional vertebra position. Au. sediba likely possessed five non-rib-bearing lumbar vertebrae and five sacral elements, the same configuration that occurs modally in modern humans. This finding contrasts with other interpretations of early hominin regional vertebral numbers. Importantly, the transitional vertebra is distinct from and above the last rib-bearing vertebra in Au. sediba, resulting in a functionally longer lower back. This configuration, along with a strongly wedged last lumbar vertebra and other indicators of lordotic posture, would have contributed to a highly flexible spine that is derived compared with earlier members of the genus Australopithecus and similar to that of the Nariokotome Homo erectus skeleton.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, Scott A -- Ostrofsky, Kelly R -- Frater, Nakita -- Churchill, Steven E -- Schmid, Peter -- Berger, Lee R -- New York, N.Y. -- Science. 2013 Apr 12;340(6129):1232996. doi: 10.1126/science.1232996.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Study of Human Origins, Department of Anthropology, New York University, New York, NY 10003, USA. sawilliams@nyu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23580532" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Biomechanical Phenomena ; Cervical Vertebrae/anatomy & histology ; *Fossils ; Hominidae/*anatomy & histology/physiology ; Humans ; Locomotion ; Lumbar Vertebrae/anatomy & histology ; Posture ; Sacrum/anatomy & histology ; South Africa ; Spine/*anatomy & histology/physiology ; Thoracic Vertebrae/anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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