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Masato Nakatsukasa
Kyoto University
138Publications
27H-index
1,807Citations
Publications 138
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#1Marine Cazenave (University of Pretoria)H-Index: 1
#2José Braga (Paul Sabatier University)H-Index: 22
Last.Roberto Macchiarelli (University of Poitiers)H-Index: 31
view all 11 authors...
Abstract Studies of the australopith (Australopithecus and Paranthropus) proximal femur have increasingly integrated information from the local arrangement of the cortical and cancellous bone to allow functional-biomechanical inferences on the locomotor behavioral patterns. In Australopithecus africanus and Paranthropus robustus, the cancellous bone organization at the center of the femoral head shows principal strut orientation similar to that of fossil and recent humans, which indicates that a...
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#1Yutaka KunimatsuH-Index: 18
#2Masato NakatsukasaH-Index: 27
Last.Hidemi IshidaH-Index: 17
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2 CitationsSource
#1Marine Cazenave (University of Pretoria)H-Index: 1
#2Anna Catherina Oettle (University of Pretoria)H-Index: 7
Last.Roberto Macchiarelli (University of Poitiers)H-Index: 31
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Abstract SKX 1084 is an isolated partial patella from Swartkrans Member 2, South Africa, attributed to a small-bodied Paranthropus robustus. This study provides complementary information on its outer conformation and, for the first time for a fossil hominin patella, documents its inner structure in the perspective of adding biomechanically-related evidence to clarify its identity. We used X-ray micro-tomography to investigate SKX 1084 and to extract homologous information from a sample of 12 rec...
1 CitationsSource
#1Masato Nakatsukasa (Kyoto University)H-Index: 27
The postcranial skeleton of living apes is characterized by a number of derived features that are attributable to the frequent forelimb-dominated orthograde positional behavior such as suspension or vertical climbing. Their axial skeletons exhibit a common specialization, e.g., a decreased number of lumbar vertebrae concomitant with an increase in sacral vertebrae, loss of an external tail, spinal invagination into the thoracic and abdominal cavities, and craniocaudally short and dorsoventrally ...
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#1Masato Nakatsukasa (Kyoto University)H-Index: 27
#2Naoki Morimoto (Kyoto University)H-Index: 10
Last.Takeshi Nishimura (Primate Research Institute)H-Index: 14
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#1Naoki Morimoto (Kyoto University)H-Index: 10
#2Masato Nakatsukasa (Kyoto University)H-Index: 27
Last.Christoph P. E. Zollikofer (UZH: University of Zurich)H-Index: 36
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Inferring the morphology of the last common ancestor of humans, chimpanzees and gorillas is a matter of ongoing debate. Recent findings and reassessment of fossil hominins leads to the hypothesis that the last common ancestor was not extant African ape-like. However, an African great-ape-like ancestor with knuckle walking features still remains plausible and the most parsimonious scenario. Here we address this question via an evolutionary developmental approach, comparing taxon-specific patterns...
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#1Naoto Handa (Osaka University)H-Index: 3
#2Masato Nakatsukasa (Kyoto University)H-Index: 27
Last.Hideo Nakaya (Kadai: Kagoshima University)H-Index: 16
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Abstract Several isolated cheek teeth and mandibular specimens of Rhinocerotidae (Mammalia, Perissodactyla) from the upper Miocene Namurungule Formation in Samburu Hills, Kenya, are redescribed. Previously, these specimens had been identified as Chilotheridium pattersoni, Chilotheridium sp., Paradiceros mukirii, and Paradiceros sp. They are reidentified here as documenting the genus Brachypotherium based on their bucco-lingually broad molariform upper premolars with short crochet and flattened b...
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#1Yasuhiro Kikuchi (Saga University)H-Index: 6
#2Masato Nakatsukasa (Kyoto University)H-Index: 27
Last.Hidemi Ishida (Kyoto University)H-Index: 17
view all 11 authors...
Abstract Sexual size dimorphism in the African fossil ape Proconsul nyanzae (18 million years ago, 18 Ma) has been previously documented. However, additional evidence for sexual dimorphism in Miocene hominoids can provide great insight into the history of extant hominoid mating systems. The present study focused on body mass (BM) sexual dimorphism in Nacholapithecus kerioi from the Middle Miocene (16–15 Ma) in Africa. Bootstrap analysis revealed that P. nyanzae BM sexual dimorphism was lower tha...
1 CitationsSource
#1Tomo TakanoH-Index: 6
#2Masato Nakatsukasa (Kyoto University)H-Index: 27
Last.Hidemi Ishida (Kyoto University)H-Index: 17
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1 CitationsSource
#1Tomoko Kimura (Shiga University of Medical Science)H-Index: 2
#2Kodai Hino (Shiga University of Medical Science)H-Index: 2
Last.Jun Udagawa (Shiga University of Medical Science)H-Index: 17
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Abstract Epidemiological research has suggested that birth weights are correlated with adult leg lengths. However, the relationship between prenatal undernutrition (UN) and postnatal leg growth remains controversial. We investigated the effects of UN during early pregnancy on postnatal hindlimb growth and determined whether early embryonic malnutrition affects the functions of postnatal chondrocytes in rats. Undernourished Wistar dams were fed 40% of the daily intake of rats in the control group...
4 CitationsSource
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