Masanaru Takai
Biographic Data
| ID | 84301 |
|---|---|
| NAME | Masanaru Takai |
| GIVEN NAMES | Masanaru |
| FAMILY NAME | Takai |
| SIGNATURE | TAKAI M |
| AFFILIATIONS | Kyoto University |
| ORCID | 0000-0002-8688-3347 |
| VERIFIED | Yes |
| TOTAL WORKS | 45 |
| TOTAL CITATIONS | 184 |
| AUTHOR COUNT | 45 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1991 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 7 |
マイケル・ベントン編、ロバート・ジェンキンズ・ 久保泰監訳『コーウェン 地球生命史』 東京化学同人 2023年7月刊 4,900 円(税別)(304 ページ)
Evaluation of winter diet composition of Japanese macaques in Kurobe Gorge by fecal analysis: A preliminary report
We analyzed fecal contents of wild Japanese macaques (Macaca fuscata) inhabiting Kurobe Gorge, mountain region of central Japan, by the point-frame method. We then compared the macaques’ winter diets with other study sites. Between 2011 and 2020, we collected macaque feces at three areas, a cave, a tunnel, and along mountain trails on steep slopes. The diet of the macaques in fall contained fruits, while in winter it was dominated by bark and win…
Modern human teeth unearthed from below the ∼128,000-year-old level at Punung, Java: A case highlighting the problem of recent intrusion in cave sediments
Present situation of paleontological research in Myanmar: Field management under Covid-19
New hominoid mandible from the early Late Miocene Irrawaddy Formation in Tebingan area, central Myanmar
A new medium-sized hominoid mandibular fossil was discovered at an early Late Miocene site, Tebingan area, south of Magway city, central Myanmar. The specimen is a left adult mandibular corpus preserving strongly worn M2 and M3, fragmentary roots of P4 and M1, alveoli of canine and P3, and the lower half of the mandibular symphysis. In Southeast Asia, two Late Miocene medium-sized hominoids have been discovered so far: Lufengpithecus from the Yun…
Phylogenetic relationship of a fossil macaque (Macaca cf. robusta) from the Korean Peninsula to extant species of macaques based on zygomaxillary morphology
Quaternary biostratigraphy in East Asia: A multidisciplinary research approach on Gigantopithecus fauna and human evolution
Contribution of the maxillary sinus to the modularity and variability of nasal cavity shape in Japanese macaques
Evolutionary trend in dental size in Gigantopithecus blacki revisited
First discovery of colobine fossils from the Late Miocene/Early Pliocene in central Myanmar
Re-examination of the fossil raccoon dog (Nyctereutes procyonoides) from the Penghu channel, Taiwan, and an age estimation of the Penghu fauna
The Penghu channel, along the western shore of Taiwan, is well known for yielding numerous Middle to Late Pleistocene mammalian fossils, including an archaic human mandible. In this work, we examine a fossil mandible of the raccoon dog, Nyctereutes procyonoides, which was recovered from the bed of the Penghu channel, and compare this with extant raccoon dog subspecies in East Asia. Two-dimensional geometric morphometric analysis of the lower firs…
Changes in the composition of the Pleistocene primate fauna in southern China
A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki
Ecogeographical and phylogenetic effects on craniofacial variation in macaques
The widespread and complex ecogeographical diversity of macaques may have caused adaptive morphological convergence among four phylogenetic subgroups, making their phylogenetic relationships unclear. We used geometric morphometrics and multivariate analyses to test the null hypothesis that craniofacial morphology does not vary with ecogeographical and phylogenetic factors. As predicted by Bergmann's rule, size was larger for the fascicularis and …
Nasal architecture in Procynocephalus wimani (Early Pleistocene, China) and implications for its phyletic relationship with Paradolichopithecus
Procynocephalus and Paradolichopithecus are large Eurasian papionins from the Middle Pliocene to Early Pleistocene. The two genera are regarded as being phylogenetically close, but their phyletic position is still disputed, in particular regarding to which subtribe, Papionina or Macacina, they are close to. Many fragile structures of the nasal region are well preserved in the type specimen of Procynocephalus wimani from the Xin’an locality in Chi…
Computed tomography examination of the face of Macaca anderssoni (Early Pleistocene, Henan, northern China): Implications for the biogeographic history of Asian macaques
Macaca anderssoni, a fossil macaque from the Early Pleistocene of northern China, has attracted much attention from researchers in terms of reconstructing the biogeographic history of Asian macaques, while its phylogenetic position remains debatable. In the present study, we evaluated patterns of variation in external and internal craniofacial morphologies among four phylogenetic groups of extant macaques (the fascicularis, sinica, silenus, and s…
First discovery of colobine fossils from the early to middle Pleistocene of southern Taiwan
Reassessment of Dolichopithecus (Kanagawapithecus) leptopostorbitalis, a colobine monkey from the Late Pliocene of Japan
Reappraisal of Macaca speciosa subfossilis from the Late Pleistocene of Northern Vietnam Based on the Analysis of Cranial Anatomy
Nasal architecture of Paradolichopithecus arvernensis (late Pliocene, Senèze, France) and its phyletic implications
Phylogenetic relationships and biogeographic history of Paradolichopithecus sushkini Trofimov 1977, a large-bodied cercopithecine monkey from the Pliocene of Eurasia
Distal humerus and ulna of Parapresbytis (Colobinae) from the Pliocene of Russia and Mongolia: Phylogenetic and Ecological Implications Based on Elbow Morphology
Parapresbytis eohanuman is a colobine known from two middle Pliocene localities southeast of Lake Baikal, northern East Asia. This study examined the morphology of postcranial specimens, a distal humerus and an ulna, of Parapresbytis. A total of 18 and 13 linear measurements were taken from the humerus and the ulna, respectively, and compared with those of extant and European fossil colobines using principal components analysis. The distal humera…
The maxillary sinus of Paradolichopithecus sushkini (late Pliocene, southern Tajikistan) and its phyletic implications
Additional materials of Myanmarpithecus yarshensis (Amphipithecidae, Primates) from the middle Eocene Pondaung Formation
"Introduction to the proceedings of the symposium "Asian Paleoprimatology: "Evolution of the Tertiary Primates in Asia"
A new anthropoid from the latest middle Eocene of Pondaung, central Myanmar
The paleobiology of Amphipithecidae, South Asian late Eocene primates
The upper dentition and face of from central Myanmar
Body Mass Estimates for Eocene Eosimiid and Amphipithecid Primates Using Prosimian and Anthropoid Scaling Models
New specimens of Neosaimiri fieldsi from La Venta, Colombia: A middle Miocene ancestor of the living squirrel monkeys
A 3-dimensional assessment of molar enamel thickness and distribution pattern in Gigantopithecus blacki
Distal humerus and ulna of Parapresbytis (Colobinae) from the Pliocene of Russia and Mongolia: Phylogenetic and Ecological Implications Based on Elbow Morphology
Parapresbytis eohanuman is a colobine known from two middle Pliocene localities southeast of Lake Baikal, northern East Asia. This study examined the morphology of postcranial specimens, a distal humerus and an ulna, of Parapresbytis. A total of 18 and 13 linear measurements were taken from the humerus and the ulna, respectively, and compared with those of extant and European fossil colobines using principal components analysis. The distal humera…
The maxillary sinus of Paradolichopithecus sushkini (late Pliocene, southern Tajikistan) and its phyletic implications
A New Platyrrhine from the Middle Miocene of La Venta, Colombia, and the Phyletic Position of Callicebinae
A new platyrrhine, Miocallicebus villaviejai gen. et sp. nov., from the middle Miocene of La Venta (Colombia) is described. The specimen consists of a right maxillary fragment preserving a root of M1, a complete M2, and a fragmentary M3. Miocallicebus is included in the Callicebinae on the basis of M2 structure, but it differs from extant Callicebus in its much larger size and the position of the pterygoid process. Morphological analysis of M2 st…
Dental variability inSaimiri and the taxonomic status ofNeosaimiri fieldsi, an early squirrel monkey from La Venta, Colombia
Variation in maxillary sinus anatomy among platyrrhine monkeys
Modern human teeth unearthed from below the ∼128,000-year-old level at Punung, Java: A case highlighting the problem of recent intrusion in cave sediments
A new eosimiid from the latest middle Eocene in Pondaung, central Myanmar
A new species of eosimiid primate, cf. Eosimias paukkaungensis sp. nov., from the latest middle Eocene of Pondaung, central Myanmar is described. The specimen consists of left and right mandibular fragments preserving only the M3, so that its generic status is provisional. The cf. E. paukkaungensis fossil is much larger than homologues of the two Eosimias species from China. It is too large to be a mandible for the taxa represented by the Eosimia…
Fission-track zircon age of the Eocene Pondaung Formation, Myanmar
Ecogeographical and phylogenetic effects on craniofacial variation in macaques
The widespread and complex ecogeographical diversity of macaques may have caused adaptive morphological convergence among four phylogenetic subgroups, making their phylogenetic relationships unclear. We used geometric morphometrics and multivariate analyses to test the null hypothesis that craniofacial morphology does not vary with ecogeographical and phylogenetic factors. As predicted by Bergmann's rule, size was larger for the fascicularis and …
Nasal architecture in Procynocephalus wimani (Early Pleistocene, China) and implications for its phyletic relationship with Paradolichopithecus
Procynocephalus and Paradolichopithecus are large Eurasian papionins from the Middle Pliocene to Early Pleistocene. The two genera are regarded as being phylogenetically close, but their phyletic position is still disputed, in particular regarding to which subtribe, Papionina or Macacina, they are close to. Many fragile structures of the nasal region are well preserved in the type specimen of Procynocephalus wimani from the Xin’an locality in Chi…
Reappraisal of Macaca speciosa subfossilis from the Late Pleistocene of Northern Vietnam Based on the Analysis of Cranial Anatomy
Evolutionary trend in dental size in Gigantopithecus blacki revisited
First discovery of colobine fossils from the Late Miocene/Early Pliocene in central Myanmar
Re-examination of the fossil raccoon dog (Nyctereutes procyonoides) from the Penghu channel, Taiwan, and an age estimation of the Penghu fauna
The Penghu channel, along the western shore of Taiwan, is well known for yielding numerous Middle to Late Pleistocene mammalian fossils, including an archaic human mandible. In this work, we examine a fossil mandible of the raccoon dog, Nyctereutes procyonoides, which was recovered from the bed of the Penghu channel, and compare this with extant raccoon dog subspecies in East Asia. Two-dimensional geometric morphometric analysis of the lower firs…
First discovery of colobine fossils from the early to middle Pleistocene of southern Taiwan
Reassessment of Dolichopithecus (Kanagawapithecus) leptopostorbitalis, a colobine monkey from the Late Pliocene of Japan
Geographical and body size distributions of the Pondaung primates with a comment on the taxonomic assignment of NMMP 20, postcranium of an amphipithecid
Relative abundance and body size were compared among six primate genera found from the Pondaung Formation (latest middle Eocene, Myanmar). Pondaungia, consisting of two species, is the most common primate in the Pondaung fauna. A high abundance of Pondaungia savagei, the larger species, is recorded at the northern fossil localities (Mogaung area). At the southwestern localities (Bahin area), the primates are taxonomically more diverse than in the…
What's in a name? Family-group taxonomy of larger-bodied Southeast Asian Eocene Primates
Computed tomography examination of the face of Macaca anderssoni (Early Pleistocene, Henan, northern China): Implications for the biogeographic history of Asian macaques
Macaca anderssoni, a fossil macaque from the Early Pleistocene of northern China, has attracted much attention from researchers in terms of reconstructing the biogeographic history of Asian macaques, while its phylogenetic position remains debatable. In the present study, we evaluated patterns of variation in external and internal craniofacial morphologies among four phylogenetic groups of extant macaques (the fascicularis, sinica, silenus, and s…
Dental variability inSaimiri and the taxonomic status ofNeosaimiri fieldsi, an early squirrel monkey from La Venta, Colombia
New specimens of Neosaimiri fieldsi from La Venta, Colombia: A middle Miocene ancestor of the living squirrel monkeys
New specimens of the oldest fossil platyrrhine,Branisella boliviana, from Salla, Bolivia
During the 1992 and 1993 field seasons, several new specimens of Branisella boliviana, the oldest fossil platyrrhine, were discovered in the late Oligocene deposits at Salla, northwestern Bolivia. The new materials are two maxillary fragments and seven mandibular fragments, including P3 and P2, neither of which have previously been recovered. All new and previously reported materials, including the holotype and referred specimens, were apparently…
New specimens of the oldest fossil platyrrhine, Branisella boliviana, from Salla, Bolivia
During the 1992 and 1993 field seasons, several new specimens of Branisella boliviana, the oldest fossil platyrrhine, were discovered in the late Oligocene deposits at Salla, northwestern Bolivia. The new materials are two maxillary fragments and seven mandibular fragments, including P3 and P2, neither of which have previously been recovered. All new and previously reported materials, including the holotype and referred specimens, were apparently…
Functional morphology of the postcranium and locomotor behavior ofNeosaimiri fieldsi, aSaimiri-like Middle Miocene platyrrhine
A number of postcranial specimens of Neosaimiri fieldsi, a Middle Miocene platyrrhine, were discovered in 1988, 1989, and 1990 at La Venta, Colombia. Until recently only three postcranial specimens of this species had been discovered and the present material adds further information about this taxon's postcranial morphology. In overall skeletal dimensions and in postcranial features, Neosaimiri is most similar to Saimiri among extant medium-sized…
New fossil materials of the earliest new world monkey,Branisella boliviana, and the problem of platyrrhine origins
Branisella boliviana, from the Late Oligocene of Salla, Bolivia, is the oldest fossil platyrrhine monkey discovered. To date, several fossil specimens of Branisella have been obtained, but most of them are fragmentary dentitions, so the animals craniodental morphology is still obscure. During the 1996 field season a pair of upper and lower jaw fragments and another nearly complete mandible were recovered. These new fossil materials reveal the fol…
New fossil materials of the earliest new world monkey, Branisella boliviana, and the problem of platyrrhine origins
Branisella boliviana, from the Late Oligocene of Salla, Bolivia, is the oldest fossil platyrrhine monkey discovered. To date, several fossil specimens of Branisella have been obtained, but most of them are fragmentary dentitions, so the animals craniodental morphology is still obscure. During the 1996 field season a pair of upper and lower jaw fragments and another nearly complete mandible were recovered. These new fossil materials reveal the fol…
A New Platyrrhine from the Middle Miocene of La Venta, Colombia, and the Phyletic Position of Callicebinae
A new platyrrhine, Miocallicebus villaviejai gen. et sp. nov., from the middle Miocene of La Venta (Colombia) is described. The specimen consists of a right maxillary fragment preserving a root of M1, a complete M2, and a fragmentary M3. Miocallicebus is included in the Callicebinae on the basis of M2 structure, but it differs from extant Callicebus in its much larger size and the position of the pterygoid process. Morphological analysis of M2 st…
A new anthropoid from the latest middle Eocene of Pondaung, central Myanmar
New eosimiid primate from Myanmar
What's in a name? Family-group taxonomy of larger-bodied Southeast Asian Eocene Primates
The upper dentition and face of from central Myanmar
Fission-track zircon age of the Eocene Pondaung Formation, Myanmar
Endocranial cast and morphology of the olfactory bulb of Amphipithecus mogaungensis (latest middle Eocene of Myanmar)
Daris R. Swindler: Primate dentition: an introduction to the teeth of non-human primates. Cambridge studies in biological and evolutionary anthropology 32
Body Mass Estimates for Eocene Eosimiid and Amphipithecid Primates Using Prosimian and Anthropoid Scaling Models
Geographical and body size distributions of the Pondaung primates with a comment on the taxonomic assignment of NMMP 20, postcranium of an amphipithecid
Relative abundance and body size were compared among six primate genera found from the Pondaung Formation (latest middle Eocene, Myanmar). Pondaungia, consisting of two species, is the most common primate in the Pondaung fauna. A high abundance of Pondaungia savagei, the larger species, is recorded at the northern fossil localities (Mogaung area). At the southwestern localities (Bahin area), the primates are taxonomically more diverse than in the…
The paleobiology of Amphipithecidae, South Asian late Eocene primates
"Introduction to the proceedings of the symposium "Asian Paleoprimatology: "Evolution of the Tertiary Primates in Asia"
Variation in maxillary sinus anatomy among platyrrhine monkeys
A new eosimiid from the latest middle Eocene in Pondaung, central Myanmar
A new species of eosimiid primate, cf. Eosimias paukkaungensis sp. nov., from the latest middle Eocene of Pondaung, central Myanmar is described. The specimen consists of left and right mandibular fragments preserving only the M3, so that its generic status is provisional. The cf. E. paukkaungensis fossil is much larger than homologues of the two Eosimias species from China. It is too large to be a mandible for the taxa represented by the Eosimia…
Additional materials of Myanmarpithecus yarshensis (Amphipithecidae, Primates) from the middle Eocene Pondaung Formation
Distal humerus and ulna of Parapresbytis (Colobinae) from the Pliocene of Russia and Mongolia: Phylogenetic and Ecological Implications Based on Elbow Morphology
Parapresbytis eohanuman is a colobine known from two middle Pliocene localities southeast of Lake Baikal, northern East Asia. This study examined the morphology of postcranial specimens, a distal humerus and an ulna, of Parapresbytis. A total of 18 and 13 linear measurements were taken from the humerus and the ulna, respectively, and compared with those of extant and European fossil colobines using principal components analysis. The distal humera…
The maxillary sinus of Paradolichopithecus sushkini (late Pliocene, southern Tajikistan) and its phyletic implications
Phylogenetic relationships and biogeographic history of Paradolichopithecus sushkini Trofimov 1977, a large-bodied cercopithecine monkey from the Pliocene of Eurasia
Biology (40 works) · Evolution and Paleontology Studies (31 works) · Primate Behavior and Ecology (29 works) · Zoology (28 works) · Paleontology (25 works) · Paleontology (23 works) · Geography (19 works) · Evolutionary biology (18 works) · Ecology (14 works) · Extant taxon (12 works)