Hiroshige Matsuoka

Hiroshige Matsuoka
Kyoto University | Kyodai · Department of Geology and Mineralogy

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62
Publications
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714
Citations
Citations since 2017
14 Research Items
308 Citations
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20172018201920202021202220230204060
20172018201920202021202220230204060
20172018201920202021202220230204060

Publications

Publications (62)
Article
Full-text available
We describe tritylodontid remains from the Lower Cretaceous Kuwajima Formation (Tetori Group) in central Japan as representing a new genus, Montirictus kuwajimaensis, gen. et sp. nov. Montirictus is a medium-sized tritylodontid genus characterized by upper cheek teeth having the cusp formula 2-2-2 with subequal cusps, buccal and lingual cusps retai...
Article
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Recent molecular phylogeny of deer revealed that the characters of antlers previously focused on are homoplasious, and antlers tend to be considered problematic for classification. However, we think antlers are important tools and reconsidered and analysed the characters and structures to use them for classification. This study developed a method t...
Article
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Abstract: A new genus and two new species of flightless fossil Cygnini (Aves: Anatidae), Annakacygna hajimei and A. yoshiiensis are described from the horizon of about 11.5 Ma of the Miocene Haraichi Formation, Annaka Group of Gunma, central Japan. The type specimen of A. hajimei (GMNH-PV-678) is the associated skeleton of an adult bird. Osteolog...
Article
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This paper clarifies the myological system of the pelvis and hind limb osteology of Whooper Swan Cygnus cygnus (Anatidae). All major muscles and ligaments were examined to determine the attachments (origin and insertion) on the bones and illustrated in detail. Totally, 48 muscles are identified: 18 muscles around the pelvis and femur, 7 muscles ari...
Article
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17 avian species belonging to the 10 families of 8 orders were identified in the fossil assemblage of Minatogawa Fissure, the locality of the Late Pleistocene Homo sapiens "Minatogawa Man" fossils, Minatogawa, Yaese Town, the southern part of Okinawa Island, Ryukyu, Japan. They are: Treron formosae (Columbiformes: Columbidae), Columbidae gen. et sp...
Article
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“Early-Middle Paleolithic tools” have long been collected from the gravel beach of Point Torigasaki, Lake Shinji-ko, Shimane Prefecture, Japan. But these geological backgrounds left unknown, then for this reason the materials from Trigasaki have not been archaeologically positioned till today. In response to this problem, the author conducted inten...
Article
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Despite longstanding interest in convergent evolution, factors that result in deviations from fully convergent phenotypes remain poorly understood. In birds, the evolution of flightless wing-propelled diving has emerged as a classic example of convergence, having arisen in disparate lineages including penguins (Sphenisciformes) and auks (Pan-Alcida...
Article
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An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Preprint
Despite longstanding interest in convergent evolution, factors that result in deviations from fully convergent phenotypes remain poorly understood. In birds, the evolution of flightless wing-propelled diving has emerged as a classic example of convergence, having arisen in disparate lineages including penguins (Sphenisciformes) and auks (Pan-Alcida...
Article
Although the North Pacific has been a key area for investigations into seabird ecology and evolution, the seabird fossil record has been scarce on the western North Pacific. This study describes new seabird remains from the Pleistocene Kazusa and Shimosa groups, central Honshu Island, Japan, adding new insight into the Pleistocene seabird fauna in...
Article
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本研究により島根県宍道湖南岸鳥ヶ崎の段丘堆積物の層序が明らかになった.また B 層・C 層・F 層と名付けた 3 層から石器の産出を確認した.この 3 層は湖岸礫の主要な供給源である.B 層の年代は MIS6 あるいはそれ以前にさかのぼると予想する.およそ 13 万年前かそれ以上の古さがあることになり,石器を残したのはホモ・サピエンスでは ないと考えられる.今後の鳥ヶ崎の古生物学的・年代学的・考古学的研究の進展が望まれる.
Article
Seabirds are higher-order predators in the marine ecosystem and hence good indicators of the marine environment. Although the North Pacific has been the focal area for investigations of seabird faunal dynamics, the Pleistocene seabird fossil record has been scarce in the western North Pacific. Here, remains of 32 species of seabirds and related tax...
Article
Full-text available
Located on the eastern margin of Eurasia, the Japanese Archipelago hosts a unique modern fauna of terrestrial vertebrates including landbirds which show a high proportion of endemic species/subspecies. Despite its potential importance in taxonomy and biogeography, the Pleistocene landbird fossil record has been scarce on Japanese islands, providing...
Article
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Despite increasing attention to geologically recent extinctions in the ocean, little information is available on natural distributions of extinct species before contact with humans. In the North Pacific, a large cormorant, Phalacrocorax perspicillatus (Spectacled/Pallas’s Cormorant), was driven to extinction in the 19th century, probably due to ove...
Article
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To elucidate environmental parameters controlling stalagmite growth in tropical areas, we conducted cave monitoring throughout a year in Petruk Cave, central Java, Indonesia. We compared stalagmite growth rate with the cave’s environmental parameters, air temperature, drip rate, calcium concentration of the drip waters, and pCO2-air. We found a rel...
Article
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The genus Uria includes volant wing-propelled diving birds widely distributed in the Arctic and boreal waters in the Northern Hemisphere. It includes two Recent species, U. lomvia and U. aalge, which represent the largest living members of Alcidae, all of which are volant. Compared to other parts of its current distribution, the fossil record of th...
Article
A flightless fossil duck (Aves, Anatidae), Shiriyanetta hasegawai, gen. et sp. nov., is described as a member of the Shiriya local fauna, a middle–late Pleistocene marine and terrestrial vertebrate fauna from fissure-fill deposits in the Shiriya area, northeast Japan. The species is represented by isolated bones, including skull fragments, vertebra...
Article
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A new fossil filefish, Aluterus shigensis sp. nov., with a close resemblance to the extant Aluterus scriptus (Osbeck), is described from the Middle Miocene Bessho Formation in Nagano Prefecture, central Japan. It is characterized by: 21 total vertebrae; very slender and long first dorsal spine with tiny anterior barbs; thin and lancet-shaped basal...
Article
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Although the importance of assessing ontogenetic age or developmental stage of fossil materials is widely recognized, information on avian postnatal skeletal ontogeny, which forms a basis for ageing criteria for bird fossils, is seriously lacking. One potentially useful ontogenetic ageing method in avian paleontology is textural ageing, in which su...
Article
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The Naradani Formation is located to the south of the Torinosu Group in the Sakawa district of Kochi, southwest Japan, and consists of a linear, narrowly distributed series of marine clastic deposits that contain allochthonous limestone blocks. This formation was previously correlated to the Bajocian–Bathonian Middle Jurassic using brachiopods extr...
Article
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The formation processes of shell concentrations in estuarine environments are complicated by the interplay between the original biogenic and overprinting sedimentary processes. In order to better understand this interplay, the formation processes of shell concentrations composed exclusively of monospecific Myrene tetoriensis (“corbiculoid” bivalve)...
Article
The Furongian Orsten-type fossil Lagerstätte in the Alum Shale Formation of Sweden is an extraordinary deposit known for its detailed, three-dimensional preservation of the soft parts of small animal carcasses which have been replaced by calcium phosphate and occur in organic-rich nodular limestone. The exact cause and mechanism of this unusual fos...
Article
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Two eobaatarid multituberculates, Heishanobaatar triangulus gen. et sp. nov. and Eobaataridae gen. et sp. indet., and an ?albionbaatarid multituberculate, Kielanobaatar badaohaoensis gen. et sp. nov., from the Lower Cretaceous (Aptian to Albian) Shahai and Fuxin formations in Liaoning Province, northeastern China, are described. Heishanobaatar tria...
Article
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Stable isotopic variations (i.e. δ18O and δ13C) of stalagmites have been widely recognized as a powerful tool to reconstruct the paleoclimate/environment of terrestrial areas. δ18O and δ13C values of a stalagmite calcite are known, however, to be cumulative signals of complex climatic and hydrogeological processes. In order to assess the reliabilit...
Article
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Based on materials from the Krasnoyarka Formation in the Naiba area in south Sakhalin, Russia, taphonomic histories of a large Campanian ammonoid, Canadoceras kossmati Matsumoto, 1954, were closely investigated. Large Canadoceras shells exceeding 30 cm in diameter are usually embedded horizontally and solitarily in muddy sandstone. A thin, lenticul...
Article
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Two eobaatarid multituberculate genera including three species from the Lower Cretaceous (Aptian-Albian) Shahai and Fuxin formations in Liaoning Province, northeastern China are described here: Sinobaatar xiei sp. nov., S. fuxinensis sp. nov., and Liaobaatar changi gen. et sp. nov. Sinobaatar xiei is characterized by ml with cusp formula 3:2 (labia...
Article
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The first triconodontids from Asia have been discovered from the Lower Cretaceous (Aptian to Albian) Shahai and Fuxin formations in Liaoning Province, northeastern China: Meiconodon lii gen. and sp. nov. and M. setoguchii gen. and sp. nov. M. lii is characterized by molariform teeth with a developed cusp d, an m3 with taller cusp a, an m4 with thre...
Article
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The fossilized limuloid tracks, Kouphichnium isp., are reported from a Lower Cretaceous bed of Tetori Group distributed along the Tedori River in Setono , Hakusan City , Ishikawa Prefecture, central Japan. Many well preserved tracks are found on the top surface of the single black siltstone bed. There are no“under tracks”at this locality. Instead,...
Article
A method of deriving the travel time of drip water based on the tritium/helium 3 (3H/3He) dating method was demonstrated in limestone caves in Indonesia. The examined drip waters from two caves, which were taken using different methods, included 2.15 (± 0.84) TU and 1.35 (± 0.77) TU of tritiogenic 3He. From the derived tritiogenic 3He contents and...
Conference Paper
In the last decade, geochemical records in stalagmites have been widely recognized as a powerful tool for the elucidation of paleoclimate/environment of the terrestrial areas. The previous data are mainly reported from middle latitude. However, this study aims at reconstructing past climate variations in the Asian equatorial regions by using oxygen...
Article
Full-text available
We carried out anatomical work on the muscles of the pectoral and humeral regions of the Whooper Swan Cygnus cygnus (Aves: Anatidae), for the purpose of clarifying the relationship between the osteological structures and attachment of muscles that is essential when we reconstruct an extinct bird from the fossilized bones. In this study, we noted on...
Conference Paper
In the last decade, decoding geochemical records in stalagmites has been widely recognized as a powerful tool for the elucidation of paleoclimate/environment of the terrestrial areas. The previous data are mainly reported from areas that are located in middle latitude. However, this study aims at reconstructing past climate variations in the Asian...
Article
Full-text available
Abstract The upper Mesozoic Tetori Group contains numerous fossils of plants and marine and non-marine animals. The group has the potential to provide key information to improve our understanding of the Middle Jurassic to Early Cretaceous biota of East Asia. However, the depositional age of the Tetori Group remains uncertain, and without good age c...
Article
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Fossil teeth of the early Cretaceous mammal-like reptile (Tritylodontidae) were observed in the internal texture in relation to tooth development and evolution. The materials were discovered from the Tetori Group which is distributed in the western area of the central mountains of Japan, and these materials are the first mammal-like reptile discove...
Article
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Four additional specimens from the Green River Formation of Wyoming are referred to the Eocene frigatebird Limnofregata azygosternon Olson, originally described from a nearly complete skeleton and two partial paratypes. Two skulls with mandibles and a partial postcranial skeleton are described as a new species, Limnofregata hasegawai, characterized...
Article
Full-text available
Four additional specimens from the Green River Formation of Wyoming are referred to the Eocene frigatebird Limnofregata azygosternon Olson, originally described from a nearly complete skeleton and two partial paratypes. Two skulls with mandibles and a partial postcranial skeleton are described as a new species, Limnofregata hasegawai, characterized...
Article
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Birds (Class Aves) have been hypothesized to have evolved from theropod dinosaurs, which belong to the group known as diapsid reptiles, during the Mesozoic era. They subsequently acquired derived characters relating to flying ability in all parts of their body, including the jaws, which were toothed in the ancestral forms but beaked in later member...
Article
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The bone-bearing beds of the Lower Cretaceous Kuwajima Formation (Tetori Group) are described. Three facies of bone-bearing beds (Facies I: carbonaceous sandstones; Facies II: dark grey fine-grained silty sandstones; Facies III: dark greenish-grey mudstones) are present in inter-channel deposits that originated on a floodplain. The grain size of th...
Article
Sauropod dinosaurs are poorly represented in the Lower Cretaceous of eastern Asia. Here, we describe a number of isolated sauropod teeth from the Kuwajima Formation (?Berriasian–?Hauterivian) of Shiramine, Japan. The mosaic of shared derived characters and symplesiomorphies displayed by the teeth indicate that they are referable to a basal member o...
Article
A new species of oyster, Crassostrea tetoriensis, is described from the lower part of the Middle Jurassic–Cretaceous Tetori Group. This is the oldest record of the genus and one of the earliest muddy–bottom–dwelling oysters. Characteristics of the species include an elongate spatulate outline and narrow attachment area, an elongate hinge area with...
Article
Full-text available
Nearly complete skeleton of a flightless swan, named the "Annaka Short-winged Swan", was found from the upper Middle Miocene Haraichi Formation (11 - 12 Ma), Tomioka Group in Annaka City, Gunma Prefecture, Japan. The wing elements are reduced distally, on the contrary the hind leg changed little from the volant ancestor, The skeleton and living pos...
Article
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A new dinosaur track locality was discovered in the upper reaches of Mekko-dani ravine, Okuchi Village, Ishikawa Prefecture, Japan, where deposits of the ltoshiro and Akaiwa Subgroups, Tetor iGroup are distributed. The localitv is included in the Neocomian Kuwajima Formation, Itoshiro Subgroup, and the depositional facies indicates a paleo-environm...
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Paleontological research for the Late Pleistocene (the last glacial maximum in general) fossil association of birds of the Central and Southern Ryukyu islands, which consists of forty-four species included in 17 families in 11 orders, revealed that the recent aspect of avian endemics, inhabiting one island only, is in fact due to relict palaeoendem...
Article
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Part of a right dentary of a pseudodontorn, bony-toothed bird, was newly found from the shell bed of the Kamimitsugano tuffaceous siltstone Facies of the Mitsugano Member in the Oi Formation (17.5-17 Ma), Ichishi Group in the Misato area, Mie Pref., Central Japan. This is the first record of a pseudodontorn bill from the Miocene of Japan. The disco...

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