Papers - KOARAI Kazuto
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Koarai Kazuto, Matsukawa Masaki, Harada Kazuo
Bulletin of Tokyo Gakugei University. Natural Sciences 70 151 - 159 2018.9
Authorship：Lead author
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Late Mesozoic bivalves of the Tetori Group, Japan
Kazuto KOARAI, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University Division of Natural Scienses 68 91 - 190 2016.9
Authorship：Lead author Publisher：Tokyo Gakugei University
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選択的に採集された貝化石による古環境推定の評価－神奈川県境川遊水地公園内で採集した第四系貝化石を例として－ Reviewed
KOARAI KAZUTO, BABA KATSUYOSHI
Education of Earth Science 63 ( 5・6 ) 149 - 162 2010.11
Publisher：Japan Society of Earth Science Education
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The Development and Practical Study of a Workshop Program for Children Utilizing a Debris Flow Model Experiment to Understand Local Flooding and Landslide Disasters
Kazuto KOARAI, Keiichi HAYASHI
Memoris of the Center for Education in General Studies, Konan University 3 163 - 172 2025.3
Authorship：Lead author
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Approaches and Instructional Methods for Inquiry-Based Activities Modeled on the Process of Scientific Research Reviewed
Keiichi HAYASHI, Kazuto KOARAI
71 ( 2 ) 7 - 16 2025.3
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FUJII Eiichi, KOARAI Kazuto, MATSUKAWA Masaki
Bulletin of Tokyo Gakugei University. Division of natural sciences 76 111 - 129 2024.10
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Development and Practice of Teaching Methods for Elementary School Science “The Force of Wind and Rubber” (3rd Grade) using the ICST System
Tsutomu ARAI, Kazuto KOARAI, Masaki MATSUKAWA, Kazuo HARADA
Bulletin of Tokyo Gakugei University. Natural Sciences 75 17 - 32 2023.9
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Assemblage Structure and Ecological Adaptive Strategy of Early “Corbiculoids” based on the Lower Jurassic Kuruma Group and the Iwamuro Formation of Japan
Kazuto KOARAI, Akihisa SHIRAI, Naohisa NISHIDA, Kenichiro SHIBATA, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University. Natural Sciences 74 123 - 140 2022.11
Authorship：Lead author
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The Effect of the ICST System on Students and Teachers in the Science Classroom Based on Comparison between Control and Experimental Groups : as an Example of “The Relationship between Electric Current and Voltage” in Junior High School Science (Field 1)
Tetsutro ONODERA, Kazuto KOARAI, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University. Natural Sciences 74 105 - 122 2022.11
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Development of “State Change” and “Generation of Gases and Their Properties” in Junior High School (Field One) based on the ICST System, and Their Class Practice
Takuma ASAHARA, Kazuto KOARAI, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University. Natural Sciences 73 189 - 202 2021.12
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Incorporation of an inductive approach in classroom teaching using the ICST system : as an example, Junior High School Science (Field Two) “Weather”
Takeshi TAGO, Kazuto KOARAI, Kazuo HARADA, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University. Natural Sciences 73 48 - 69 2021.12
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Teaching Development of the “Construction and Motion of the Human Body” in the 4th Grade Elementary School Science Curriculum based on a Newly Method of Cultivating Scientific Thinking and Problem-solving
Kazuto KOARAI, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University. Natural Sciences 73 203 - 212 2021.12
Authorship：Lead author
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The effect of the ICST system on students and teachers in the science classroom : as an example of ''Light and How We See Objects'' in Junior High School Science (Field 1)
Takeshi TAGO, Kazuto KOARAI, Kazuo HARADA, Masaki MATSUKAWA
Bulletin of Tokyo Gakugei University. Natural Sciences 72 97 - 109 2020.10
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Keiichi HAYASHI, Saki FUJITA, Kazuto KOARAI, Masaki MATSUKAWA
The Journal of the Geological Society of Japan 123 ( 9 ) 747 - 764 2017.9
Publisher：The Geological Society of Japan
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Masaki MATSUKAWA, Kazuto KOARAI
Bulletin of Tokyo Gakugei University. Natural Sciences 69 223 - 248 2017.9
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Late Mesozoic bivalve faunas from the Tetori Group, Japan Reviewed
Masaki Matsukawa, Kazuto Koarai
CRETACEOUS RESEARCH 71 145 - 165 2017.3
Publisher：ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
The Tetori Group of Japan ranks amongst the more important Upper Mesozoic strata in East Asia, with common animal and plant fossils throughout and is well suited for analyses of the links between environmental changes and the various animal and plant fossil assemblages. Three marine transgressions (i.e., Bathonian Oxfordian, Tithonian Berriasian and Hauterivian Barremian in age) have been recognized in the Tetori Group, based on ammonite index taxa. These pulses are also reflected in bivalve faunas which comprise, 81 species in 65 genera (marine taxa) and 16 species in 13 genera (non marine taxa). Many of these are considered as endemic species to the Tetori Group. In view of the fact that the occurrence of non-marine taxa was primarily controlled by environmental conditions, these do not constitute chronological indices. The faunal composition of the first marine transgressive phase is similar to that found elsewhere in southeast Asia, while that of the second one resembles both that of southeast Asia and of northeast China and Far East Russia. Assemblages of the third phase are similar to those of Heilongjiang, northeast China. Currents from the equator and high-latitudes explain these similarities. (C) 2016 Elsevier Ltd. All rights reserved.
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中学生を対象とした多摩川河床の露頭を用いた地質野外学習の実践と評価
小荒井千人, 宮口真木子, 松川正樹
多摩川中流域に分布する上総層群の残された問題の解決、総括的研究と 地質野外実習教材の改訂 98 - 107 2016.11
Authorship：Lead author Publisher：公益財団法人とうきゅう環境財団
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Corbiculoid fauna from the Lower Jurassic Iwamuro Formation, Gunma Prefecture, Japan
Masaki MATSUKAWA, Kenichiro SHIBATA, Kazuto KOARAI, Naohisa NISHIDA
Bulletin of Tokyo Gakugei University Division of Natural Sciences 66 149 - 158 2014.9
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Masaki MATSUKAWA, Makiko FUKUI, Yutaka OGAWA, Takeshi TAGO, Kazuto KOARAI, Keiichi HAYASHI
The Jurnal of the Geological Society of Japan 120 ( 6 ) 201 - 217 2014.6
Publisher：The Geological Society of Japan
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Masaki MATSUKAWA, Makiko FUKUI, Yutaka OGAWA, Takeshi TAGO, Kazuto KOARAI, Hiroto Ohira, Keiichi HAYASHI
The Jurnal of the Geological Society of Japan 120 ( 5 ) 147 - 164 2014.5
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First report of the ichnogenus Magnoavipes from China: New discovery from the Lower Cretaceous inter-mountain basin of Shangzhou, Shaanxi Province, central China Reviewed International coauthorship
Masaki Matsukawa, Martin G. Lockley, Keiichi Hayashi, Kazuto Koarai, Chen Peiji, Zhang Haichun
Cretaceous Research 47 131 - 139 2014.1
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Paleoecology and evolution of Jurassic–Cretaceous corbiculoids from Japan Reviewed
Naohisa NISHIDA, Akihisa SHIRAI, Kazuto KOARAI, Kosuke NAKADA, Masaki MATSUKAWA
Palaeogeography, Palaeoclimatology, Palaeoecology 359 ( 1 ) 239 - 252 2013.1
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KOARAI KAZUTO, TSUCHIDA NAOMI, MATSUKAWA MASAKI
Bulletin of Tokyo Gakugei University. Natural Sciences 63 67 - 89 2011.9
Authorship：Lead author Publisher：東京学芸大学
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KOARAI KAZUTO, MATSUKAWA MASAKI
Bulletin of Tokyo Gakugei University. Natural Sciences 62 103 - 118 2010.9
Authorship：Lead author Publisher：東京学芸大学
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Revised age of the Sasayama Group, southwest Japan, based on ostracode and conchostracan bio-stratigraphy and zircon fission-track dating Reviewed International coauthorship
Keiichi HAYASHI, Masaki MATSUKAWA, Hiroto Ohira, Peiji Chen, Jinshen Zhen, Makoto ITO, Kazuto KOARAI, Ikuwo OBATA
The Jurnal of the Geological Society of Japan 116 ( 5 ) 283 - 286 2010.5
Publisher：日本地質学会
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よこはま動物園ズーラシアでの校外学習
小荒井 千人
慶應義塾湘南藤沢中・高等部 15年記念紀要 63 - 74 2008.3
Authorship：Lead author
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A gigantic ammonite from the Upper Jurassic Arimine Formation of the Tetori Group, Japan
Masaki Matsukawa, Kazuto Koarai, Makiko Fukui, Koji Suzuki, Yutaka Ogawa, Shigeru Kikukawa, Masahiro Kometani, Toshikazu Hamuro
Bulletin of Tateyama Caldera Sabo Museum ( 9 ) 1 - 10 2008
Publisher：Tateyama Caldera Sabo Museum
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Matsukawa Masaki, Fukui Makiok, Koarai Kazuto, Asakura Tsutomu, Aono Hiromi
Journal of the Geological Society of Japan 113 ( 8 ) 417 - 437 2007.8
Publisher：The Geological Society of Japan
The Tetori Group is distributed in the Hida-Furukawa area. There are diverse opinions about the stratigraphy of the group. So, we restudied the stratigraphy of the group. The group can be divided into six formations: the Tanemura, Numamachi, Sugizaki/Tochio, Taie and Inagoe in ascending order. The geological map of the area was revised to show the distribution of these six formations. These formations are suggested the environments of alluvial fan to shallow marine, shown by deposits transported from the eastern hinterland and fossil evidence. Ammonite indices suggesting Hauterivian to Barremian age occur in the Inagoe Formation. This shows the evidence of the third marine transgression in the Tetori Group. As marine bivalves including inoce- ramids occur in the Sugizaki Formation as well, two marine transgressions can be recognized in the Tetori Group in this area. Consequently, three sequential marine transgressions: Bathonian to Oxfordian, Tithonian to Berriasian, and Hautervian to Barremian, can be recognized in the Tetori area. In the eastern part of the Heilongjiang, China, two marine transgressions, the first from late Oxfordian to Volgian (= Tithonian to early Berrriasian) and the second from Barremian to Aptian, are recognizable. Therefore, these marine transgressions in China correspond to these in the Tetori area. Occurrence of common marine bivalve species and related ammonite species suggests the same realm for both the eastern part of the Heilongjiang, China and the Tetori area, Japan, during Hauterivian to Barremian time. These faunal compositions are different from those of areas in the southwest of Japan influenced by currents from low latitudes. This supports the idea that a peninsula of land was present between both the Tetori area and areas in southwest of Japan. Thus, both areas of the eastern part of the Heilongjiang and the Tetori area were influenced by current from the high latitude.
Other Link： https://jlc.jst.go.jp/DN/JALC/00299615268?from=CiNii
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KOARAI KAZUTO, MATSUKAWA MASAKI, MATSUKAWA MARIKO
Education of Earth Science 60 ( 4 ) 125 - 135 2007.7
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Practical usage of the fossil mesosaurus for studying palaeontology in the class.
KOARAI KAZUTO
ANNALS of The Teacher Training Center Keio University ( 18 ) 9 - 20 2007.3
Authorship：Lead author Publisher：慶應義塾教職課程センター
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The Cretaceous Tetori biota in Japan and its evolutionary significance for terrestrial ecosystems in Asia Reviewed International coauthorship
Matsukawa, M, Ito, M, Nishida, N, Koarai, K, Lockley, M.G, Nichols, D.J
Cretaceous Research 27 ( 2 ) 199 - 225 2006
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Use of Models to Estimate Dinosaur Weight as Teaching Aids Reviewed
MATSUKAWA Masaki, KOARAI Kazuto, SHIBATA Kenichiro, NAKANISHI Ryouhei
Education of Earth Science 59 ( 3 ) 89 - 100 2006
Publisher：Japan Society of Earth Science Education
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Review of Japanese dinosaur track localities: implications for ichnotaxonomy, paleogeography and stratigraphic correlation Reviewed International coauthorship
Matsukawa, M, Shibata, K, Kujihara, R, Koarai, K, Lockley, M.G
Ichnos 12 201 - 222 2005
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Sedimentary environments of the Pleistocene Kazusa Group exposed on the Tamagawa River floor
Excursion Guidebook - The 111th Annual Meeting of the Geological Society of Japan (2004, Chiba) - 81 - 92 2004
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Stratigraphy and sedimentary basin developments of the Tetori Group in its main area, central Japan Reviewed
MATSUKAWA Masaki, KOARAI Kazuto, SHIONOYA Sho, SHINKAI Takuya, NAKADA Kosuke, MATSUI Tetsuya, AONO Hiromi, KOBAYASHI Norio, OKUBO Atsushi, HAYASHI keiichi, ITO Makoto
Journal of the Geological Society of Japan 109 ( 7 ) 383 - 398 2003
Publisher：日本地質学会
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Stratigraphy of the Tetori Group in the eastern part of the Kuzuryugawa area, Fukui Prefecture, Japan and correlation with its main part in the vicinity of Mount Hakusan, central Japan
Bulletin of Tokyo Gakugei University, Section 4 Mathematics and Natural Sciences 55 191 - 200 2003
Publisher：Committee of Publication of Bulletin of Tokyo Gakugei University
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Zoo and phyto biostratigraphy of the Tetori Group and evolutionary significance of terrestrial paleoecosystem Reviewed
MATSUKAWA Masaki, KOARAI Kazuto, OKUBO Atsushi, ITO Makoto
Journal of the Geological Society of Japan 109 ( 8 ) 466 - 477 2003
Publisher：Geological Society of Japan
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昭島地域の地質野外実習案内
小荒井千人, 青野宏美, 前田由紀
地質野外実習地としての多摩川中流域および狭山丘陵に分布する上総層群の露頭の現状とそれに基づく教材開発（多摩川環境調査助成集 Vol. 24） 218 - 231 2002.4
Authorship：Lead author
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秋川地域の地質野外実習案内
青野宏美, 小荒井千人
地質野外実習地としての多摩川中流域および狭山丘陵に分布する上総層群の露頭の現状とそれに基づく教材開発（多摩川環境調査助成集 Vol. 24） 254 - 263 2002.4
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The Mesozoic Tetori Group in the Upper Stream of the Tetori River and its Related Areas
MATSUKAWA Masaki, KOARAI Kazuto, SHIONOYA Susumu, SHINKAI Takuya, NAKADA Kosuke, MATSUI Tetsuya, AONO Hiromi, KOBAYASHI Norio, OKUBO Atsushi, HAYASHI Keiichi, ITO Makoto
3 - 19 2002
Publisher：石川県白山自然保護センター
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Teaching Material Development of Life Habit of Fossil Bivalves by Using Functional Morphology Analsys Reviewed
Kazuto KOARAI
Education of Earth Science 53 ( 5 ) 209 - 217 2000.9
Authorship：Lead author Publisher：日本地学教育学会
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MATSUKAWA M, SHIONOYA S, KOARAI K, SHINKAI T, NAKATA K, MATSUI T, AONO H, KOBAYASHI N
Bulletin of Tokyo Gakugei University, Section 4 Mathematics and Natural Sciences 52 37 - 46 2000
Publisher：Committee of Publication of Bulletin of Tokyo Gakugei University
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Let's Reanimate Ancient Animals Based on Elephant Tracks for Possible Teaching Development Reviewed
Katsuyoshi BABA, Masaki MATSUKAWA, Kazuto KOARAI, Keiichi HAYASHI, Atsushi OKUBO Makoto ITO
Education of Earth Science 53 ( 6 ) 269 - 281 2000
Publisher：日本地学教育学会
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Practice and Revise of "Let's Running with Dinosaurs" as Teaching Material Development Reviewed
Kazuto KOARAI. Masaki MATSUKAWA
Education of Earth Science 52 ( 1 ) 23 - 30 1999.1
Authorship：Lead author Publisher：日本地学教育学会
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MATSUKAWA M, NAKATA K, KOARAI K, KABASAWA Y, SHIONOYA S, MATSUI T, OKUBO A, AONO H
Bulletin of Tokyo Gakugei University, Section 4 Mathematics and Natural Sciences 51 67 - 76 1999
Publisher：Committee of Publication of Bulletin of Tokyo Gakugei University
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"Let's Running with Dinosaurs" as Teaching Development Reviewed
Kazuto KOARAI, Masaki MATSUKAWA, Yutaro SAKAKIBARA
Education of Earth Science 50 ( 6 ) 217 - 227 1997.11
Authorship：Lead author Publisher：日本地学教育学会
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Nonmarine molluscan assemblages in the middle part of the Tetori Group(Upper Jurassic to Lower Cretaceous),GifuPrefecture, central Japan
Matsukawa Masaki, Kawashima Kazuhisa, Koarai Kazuto
Bulletin of Tokyo Gakugei University. Natural Sciences 48 101 - 113 1996
Publisher：東京学芸大学