New Australopithecus boisei specimens from east and west Lake Turkana, Kenya
Identifieur interne : 00C086 ( Main/Exploration ); précédent : 00C085; suivant : 00C087New Australopithecus boisei specimens from east and west Lake Turkana, Kenya
Auteurs : R. E. F. Leakey [Kenya] ; A. Walker [États-Unis]Source :
- American Journal of Physical Anthropology [ 0002-9483 ] ; 1988-05.
Descripteurs français
- Wicri :
- geographic : Kenya.
English descriptors
- KwdEn :
- Accessory, Alveolar margin, Alveolar processes, Anterior, Anterior border, Anterior branch, Anterior part, Anterior surface, Anterior teeth, Anteriorly, Anteroposteriorly, Articular, Articular eminence, Asterion, Australopithecus, Australopithecus boisei specimens, Boisei, Boisei mandibles, Boisei specimens, Bregma, Buccal, Buccal cusp, Canine, Canine roots, Central incisors, Cerebellar lobes, Clinoid processes, Clivus, Convex, Coppens, Cranial, Cranial base, Cranial capacity, Cranium, Crest, Cusp, Dentin, Distal buccal grooves, Dorsum sellae, Downwards, Enamel, Endocast, Entoglenoid, Entoglenoid process, External chord, Fissure, Foramen, Foramen magnum, Foramen ovale, Fossa, Fossil, Fossil hominids, Fovea, Frontal, Frontal crest, Frontal processes, Frontal trigon, Frontomaxillary suture, Glabella, Greater palatine foramina, Groove, High degree, Hominid, Incisor, Inferior, Inferior margin, Inferior views, Inferiorly, Kenya, Koobi fora, Lake turkana, Lambda, Lateral, Lateral incisor roots, Lateral part, Lateral view, Laterally, Leakey, Lineage, Lingual, Main cusps, Main specimen, Mandible, Mandibular, Margin, Marginal ridge, Mastoid, Mastoid crest, Matrix, Maxilla, Maxillary, Medial, Medially, Meningeal, Meningeal vessel pattern, Mesial, Mesial root, Mesiodistally, Mesiolingual, Mesiolingual corner, Midline, Molar, Nasal, Nasal spine, National museums, Nature leakey, Nuchal, Occipital, Occipital poles, Orbital, Orbital margin, Orno, Palate, Palatine, Parietal, Parietals, Petrous, Petrous pyramid, Phys, Posterior, Posterior fibres, Posterior fovea, Posterior margin, Posterior part, Posterior surface, Posteriorly, Postglenoid process, Prosthion, Pterygoid, Pyriform, Pyriform aperture, Right side, Sagittal, Sagittal crest, Sexual dimorphism, Sinus, Squamous, Squamous part, Squamous suture, Superior part, Superior parts, Superior view, Superior views, Supramastoid crest, Supraorbital, Supraorbital tori, Suture, Temporal, Temporal process, Temporalis, Temporonuchal crest, Torus, Tubercle, Turkana, Tympanic plate, West lake turkana, Zygomatic, Zygomatic arch, Zygomatic bone, Zygomatic process, Zygomatic root.
- Teeft :
- Accessory, Alveolar margin, Alveolar processes, Anterior, Anterior border, Anterior branch, Anterior part, Anterior surface, Anterior teeth, Anteriorly, Anteroposteriorly, Articular, Articular eminence, Asterion, Australopithecus, Australopithecus boisei specimens, Boisei, Boisei mandibles, Boisei specimens, Bregma, Buccal, Buccal cusp, Canine, Canine roots, Central incisors, Cerebellar lobes, Clinoid processes, Clivus, Convex, Coppens, Cranial, Cranial base, Cranial capacity, Cranium, Crest, Cusp, Dentin, Distal buccal grooves, Dorsum sellae, Downwards, Enamel, Endocast, Entoglenoid, Entoglenoid process, External chord, Fissure, Foramen, Foramen magnum, Foramen ovale, Fossa, Fossil, Fossil hominids, Fovea, Frontal, Frontal crest, Frontal processes, Frontal trigon, Frontomaxillary suture, Glabella, Greater palatine foramina, Groove, High degree, Hominid, Incisor, Inferior, Inferior margin, Inferior views, Inferiorly, Kenya, Koobi fora, Lake turkana, Lambda, Lateral, Lateral incisor roots, Lateral part, Lateral view, Laterally, Leakey, Lineage, Lingual, Main cusps, Main specimen, Mandible, Mandibular, Margin, Marginal ridge, Mastoid, Mastoid crest, Matrix, Maxilla, Maxillary, Medial, Medially, Meningeal, Meningeal vessel pattern, Mesial, Mesial root, Mesiodistally, Mesiolingual, Mesiolingual corner, Midline, Molar, Nasal, Nasal spine, National museums, Nature leakey, Nuchal, Occipital, Occipital poles, Orbital, Orbital margin, Orno, Palate, Palatine, Parietal, Parietals, Petrous, Petrous pyramid, Phys, Posterior, Posterior fibres, Posterior fovea, Posterior margin, Posterior part, Posterior surface, Posteriorly, Postglenoid process, Prosthion, Pterygoid, Pyriform, Pyriform aperture, Right side, Sagittal, Sagittal crest, Sexual dimorphism, Sinus, Squamous, Squamous part, Squamous suture, Superior part, Superior parts, Superior view, Superior views, Supramastoid crest, Supraorbital, Supraorbital tori, Suture, Temporal, Temporal process, Temporalis, Temporonuchal crest, Torus, Tubercle, Turkana, Tympanic plate, West lake turkana, Zygomatic, Zygomatic arch, Zygomatic bone, Zygomatic process, Zygomatic root.
Abstract
New specimens of Plio‐Pleistocene Australopithecus boisei are described from east and west Lake Turkana in Northern Kenya. These include a cranium and partial mandible from deposits close to 2.5 Myr and two partial crania and two mandibles from later horizons. The earlier fossils enable us to decipher, for the first time, some of the in situ evolution of this species within the Turkana Basin. The following are among the important changes in the cranium through time: 1) increase in size and change in shape of the braincase, 2) changes in the meningeal vessel pattern and possibly in the venous drainage pattern, 3) increased flexion of the cranial base and decreased prognathism, and 4) changes in the temporal bone to bring about a more vertical posterior face of the petrous pyramid and the development of a strong articular eminence.
Url:
DOI: 10.1002/ajpa.1330760102
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 007219
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- to stream Istex, to step Checkpoint: 005A65
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Le document en format XML
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<author><name sortKey="Walker, A" sort="Walker, A" uniqKey="Walker A" first="A." last="Walker">A. Walker</name>
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<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">New <hi rend="italic">Australopithecus boisei</hi>
specimens from east and west Lake Turkana, Kenya</title>
<author><name sortKey="Leakey, R E F" sort="Leakey, R E F" uniqKey="Leakey R" first="R. E. F." last="Leakey">R. E. F. Leakey</name>
<affiliation wicri:level="1"><country xml:lang="fr">Kenya</country>
<wicri:regionArea>National Museums of Kenya, P.O. Box 40658, Nairobi</wicri:regionArea>
<wicri:noRegion>Nairobi</wicri:noRegion>
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<author><name sortKey="Walker, A" sort="Walker, A" uniqKey="Walker A" first="A." last="Walker">A. Walker</name>
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<wicri:regionArea>Department of Cell Biology and Anatomy, The Johns Hopkins University School of Medicine, 725 N. Wolfe Street, Baltimore, Md 21205</wicri:regionArea>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Accessory</term>
<term>Alveolar margin</term>
<term>Alveolar processes</term>
<term>Anterior</term>
<term>Anterior border</term>
<term>Anterior branch</term>
<term>Anterior part</term>
<term>Anterior surface</term>
<term>Anterior teeth</term>
<term>Anteriorly</term>
<term>Anteroposteriorly</term>
<term>Articular</term>
<term>Articular eminence</term>
<term>Asterion</term>
<term>Australopithecus</term>
<term>Australopithecus boisei specimens</term>
<term>Boisei</term>
<term>Boisei mandibles</term>
<term>Boisei specimens</term>
<term>Bregma</term>
<term>Buccal</term>
<term>Buccal cusp</term>
<term>Canine</term>
<term>Canine roots</term>
<term>Central incisors</term>
<term>Cerebellar lobes</term>
<term>Clinoid processes</term>
<term>Clivus</term>
<term>Convex</term>
<term>Coppens</term>
<term>Cranial</term>
<term>Cranial base</term>
<term>Cranial capacity</term>
<term>Cranium</term>
<term>Crest</term>
<term>Cusp</term>
<term>Dentin</term>
<term>Distal buccal grooves</term>
<term>Dorsum sellae</term>
<term>Downwards</term>
<term>Enamel</term>
<term>Endocast</term>
<term>Entoglenoid</term>
<term>Entoglenoid process</term>
<term>External chord</term>
<term>Fissure</term>
<term>Foramen</term>
<term>Foramen magnum</term>
<term>Foramen ovale</term>
<term>Fossa</term>
<term>Fossil</term>
<term>Fossil hominids</term>
<term>Fovea</term>
<term>Frontal</term>
<term>Frontal crest</term>
<term>Frontal processes</term>
<term>Frontal trigon</term>
<term>Frontomaxillary suture</term>
<term>Glabella</term>
<term>Greater palatine foramina</term>
<term>Groove</term>
<term>High degree</term>
<term>Hominid</term>
<term>Incisor</term>
<term>Inferior</term>
<term>Inferior margin</term>
<term>Inferior views</term>
<term>Inferiorly</term>
<term>Kenya</term>
<term>Koobi fora</term>
<term>Lake turkana</term>
<term>Lambda</term>
<term>Lateral</term>
<term>Lateral incisor roots</term>
<term>Lateral part</term>
<term>Lateral view</term>
<term>Laterally</term>
<term>Leakey</term>
<term>Lineage</term>
<term>Lingual</term>
<term>Main cusps</term>
<term>Main specimen</term>
<term>Mandible</term>
<term>Mandibular</term>
<term>Margin</term>
<term>Marginal ridge</term>
<term>Mastoid</term>
<term>Mastoid crest</term>
<term>Matrix</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Medial</term>
<term>Medially</term>
<term>Meningeal</term>
<term>Meningeal vessel pattern</term>
<term>Mesial</term>
<term>Mesial root</term>
<term>Mesiodistally</term>
<term>Mesiolingual</term>
<term>Mesiolingual corner</term>
<term>Midline</term>
<term>Molar</term>
<term>Nasal</term>
<term>Nasal spine</term>
<term>National museums</term>
<term>Nature leakey</term>
<term>Nuchal</term>
<term>Occipital</term>
<term>Occipital poles</term>
<term>Orbital</term>
<term>Orbital margin</term>
<term>Orno</term>
<term>Palate</term>
<term>Palatine</term>
<term>Parietal</term>
<term>Parietals</term>
<term>Petrous</term>
<term>Petrous pyramid</term>
<term>Phys</term>
<term>Posterior</term>
<term>Posterior fibres</term>
<term>Posterior fovea</term>
<term>Posterior margin</term>
<term>Posterior part</term>
<term>Posterior surface</term>
<term>Posteriorly</term>
<term>Postglenoid process</term>
<term>Prosthion</term>
<term>Pterygoid</term>
<term>Pyriform</term>
<term>Pyriform aperture</term>
<term>Right side</term>
<term>Sagittal</term>
<term>Sagittal crest</term>
<term>Sexual dimorphism</term>
<term>Sinus</term>
<term>Squamous</term>
<term>Squamous part</term>
<term>Squamous suture</term>
<term>Superior part</term>
<term>Superior parts</term>
<term>Superior view</term>
<term>Superior views</term>
<term>Supramastoid crest</term>
<term>Supraorbital</term>
<term>Supraorbital tori</term>
<term>Suture</term>
<term>Temporal</term>
<term>Temporal process</term>
<term>Temporalis</term>
<term>Temporonuchal crest</term>
<term>Torus</term>
<term>Tubercle</term>
<term>Turkana</term>
<term>Tympanic plate</term>
<term>West lake turkana</term>
<term>Zygomatic</term>
<term>Zygomatic arch</term>
<term>Zygomatic bone</term>
<term>Zygomatic process</term>
<term>Zygomatic root</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Accessory</term>
<term>Alveolar margin</term>
<term>Alveolar processes</term>
<term>Anterior</term>
<term>Anterior border</term>
<term>Anterior branch</term>
<term>Anterior part</term>
<term>Anterior surface</term>
<term>Anterior teeth</term>
<term>Anteriorly</term>
<term>Anteroposteriorly</term>
<term>Articular</term>
<term>Articular eminence</term>
<term>Asterion</term>
<term>Australopithecus</term>
<term>Australopithecus boisei specimens</term>
<term>Boisei</term>
<term>Boisei mandibles</term>
<term>Boisei specimens</term>
<term>Bregma</term>
<term>Buccal</term>
<term>Buccal cusp</term>
<term>Canine</term>
<term>Canine roots</term>
<term>Central incisors</term>
<term>Cerebellar lobes</term>
<term>Clinoid processes</term>
<term>Clivus</term>
<term>Convex</term>
<term>Coppens</term>
<term>Cranial</term>
<term>Cranial base</term>
<term>Cranial capacity</term>
<term>Cranium</term>
<term>Crest</term>
<term>Cusp</term>
<term>Dentin</term>
<term>Distal buccal grooves</term>
<term>Dorsum sellae</term>
<term>Downwards</term>
<term>Enamel</term>
<term>Endocast</term>
<term>Entoglenoid</term>
<term>Entoglenoid process</term>
<term>External chord</term>
<term>Fissure</term>
<term>Foramen</term>
<term>Foramen magnum</term>
<term>Foramen ovale</term>
<term>Fossa</term>
<term>Fossil</term>
<term>Fossil hominids</term>
<term>Fovea</term>
<term>Frontal</term>
<term>Frontal crest</term>
<term>Frontal processes</term>
<term>Frontal trigon</term>
<term>Frontomaxillary suture</term>
<term>Glabella</term>
<term>Greater palatine foramina</term>
<term>Groove</term>
<term>High degree</term>
<term>Hominid</term>
<term>Incisor</term>
<term>Inferior</term>
<term>Inferior margin</term>
<term>Inferior views</term>
<term>Inferiorly</term>
<term>Kenya</term>
<term>Koobi fora</term>
<term>Lake turkana</term>
<term>Lambda</term>
<term>Lateral</term>
<term>Lateral incisor roots</term>
<term>Lateral part</term>
<term>Lateral view</term>
<term>Laterally</term>
<term>Leakey</term>
<term>Lineage</term>
<term>Lingual</term>
<term>Main cusps</term>
<term>Main specimen</term>
<term>Mandible</term>
<term>Mandibular</term>
<term>Margin</term>
<term>Marginal ridge</term>
<term>Mastoid</term>
<term>Mastoid crest</term>
<term>Matrix</term>
<term>Maxilla</term>
<term>Maxillary</term>
<term>Medial</term>
<term>Medially</term>
<term>Meningeal</term>
<term>Meningeal vessel pattern</term>
<term>Mesial</term>
<term>Mesial root</term>
<term>Mesiodistally</term>
<term>Mesiolingual</term>
<term>Mesiolingual corner</term>
<term>Midline</term>
<term>Molar</term>
<term>Nasal</term>
<term>Nasal spine</term>
<term>National museums</term>
<term>Nature leakey</term>
<term>Nuchal</term>
<term>Occipital</term>
<term>Occipital poles</term>
<term>Orbital</term>
<term>Orbital margin</term>
<term>Orno</term>
<term>Palate</term>
<term>Palatine</term>
<term>Parietal</term>
<term>Parietals</term>
<term>Petrous</term>
<term>Petrous pyramid</term>
<term>Phys</term>
<term>Posterior</term>
<term>Posterior fibres</term>
<term>Posterior fovea</term>
<term>Posterior margin</term>
<term>Posterior part</term>
<term>Posterior surface</term>
<term>Posteriorly</term>
<term>Postglenoid process</term>
<term>Prosthion</term>
<term>Pterygoid</term>
<term>Pyriform</term>
<term>Pyriform aperture</term>
<term>Right side</term>
<term>Sagittal</term>
<term>Sagittal crest</term>
<term>Sexual dimorphism</term>
<term>Sinus</term>
<term>Squamous</term>
<term>Squamous part</term>
<term>Squamous suture</term>
<term>Superior part</term>
<term>Superior parts</term>
<term>Superior view</term>
<term>Superior views</term>
<term>Supramastoid crest</term>
<term>Supraorbital</term>
<term>Supraorbital tori</term>
<term>Suture</term>
<term>Temporal</term>
<term>Temporal process</term>
<term>Temporalis</term>
<term>Temporonuchal crest</term>
<term>Torus</term>
<term>Tubercle</term>
<term>Turkana</term>
<term>Tympanic plate</term>
<term>West lake turkana</term>
<term>Zygomatic</term>
<term>Zygomatic arch</term>
<term>Zygomatic bone</term>
<term>Zygomatic process</term>
<term>Zygomatic root</term>
</keywords>
<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Kenya</term>
</keywords>
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<front><div type="abstract" xml:lang="en">New specimens of Plio‐Pleistocene Australopithecus boisei are described from east and west Lake Turkana in Northern Kenya. These include a cranium and partial mandible from deposits close to 2.5 Myr and two partial crania and two mandibles from later horizons. The earlier fossils enable us to decipher, for the first time, some of the in situ evolution of this species within the Turkana Basin. The following are among the important changes in the cranium through time: 1) increase in size and change in shape of the braincase, 2) changes in the meningeal vessel pattern and possibly in the venous drainage pattern, 3) increased flexion of the cranial base and decreased prognathism, and 4) changes in the temporal bone to bring about a more vertical posterior face of the petrous pyramid and the development of a strong articular eminence.</div>
</front>
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<affiliations><list><country><li>Kenya</li>
<li>États-Unis</li>
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<tree><country name="Kenya"><noRegion><name sortKey="Leakey, R E F" sort="Leakey, R E F" uniqKey="Leakey R" first="R. E. F." last="Leakey">R. E. F. Leakey</name>
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<country name="États-Unis"><noRegion><name sortKey="Walker, A" sort="Walker, A" uniqKey="Walker A" first="A." last="Walker">A. Walker</name>
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