Ryoji Wani

Profile Information

Affiliation: Faculty of Environment and Information Sciences, Yokohama National University

Degree: 博士（理学）(早稲田大学)

Researcher number: 70508580
J-GLOBAL ID: 200901089063585229
researchmap Member ID: 6000013104

Research Areas

Natural sciences / Biogeoscience /

Research History

Apr, 2011 - Present

Faculty of Environment and Information Sciences, Yokohama National University
Dec, 2007 - Mar, 2011

YNU Interdisciplinary Research Center, Yokohama National University

Education

Papers

Covariable changes of septal spacing and conch shape during early ontogeny: a common characteristic between Perisphinctina and Ancyloceratina (Ammonoidea, Cephalopoda)

Yutaro Nishino, Keisuke Komazaki, Masaki Arai, Ai Hattori, Yuji Uoya, Takahiro Iida, Ryoji Wani

Journal of Paleontology, 98 102-114, 2024 Peer-reviewedLast authorCorresponding author
Stepwise growth changes in early post-embryonic stages among Cretaceous tetragonitid ammonoids

Yoshitaka Kawakami, Ryoji Wani

Paläontologische Zeitschrift, Mar 30, 2023 Peer-reviewedLast authorCorresponding author
A three-dimensionally preserved frog (Amphibia, Anura) from the Lower Cretaceous Kuwajima Formation, Tetori Group, Ishikawa Prefecture, Japan

Mizukami, A, Matsumoto, R, Wani, R, Evans, S.E

Paleontological Research, 27 333-349, 2023 Peer-reviewed
Conservative ontogenetic trajectories of septal spacing during the post-embryonic stage in Cretaceous ammonoids of the subfamily Desmoceratinae

Fuki Takai, Shin Matsukuma, Kota Hirose, Takashi Yamazaki, Daisuke Aiba, Ryoji Wani

Lethaia, 55(2) 1-12, 2022 Peer-reviewedLast authorCorresponding author
Ontogenetic trajectories of septal spacing and conch shape in the Late Cretaceous gaudryceratid ammonoids: implications for their post‐embryonic palaeoecology

Yoshitaka Kawakami, Naomi Uchiyama, Ryoji Wani

Palaeontology, 65(1), 2022 Peer-reviewedLast author
Preservation of nautilid soft parts inside and outside the conch interpreted as central nervous system, eyes, and renal concrements from the Lebanese Cenomanian

Christian Klug, Alexander Pohle, Rosemarie Roth, René Hoffmann, Ryoji Wani, Amane Tajika

Swiss Journal of Palaeontology, 140(1), 2021 Peer-reviewed
Ontogenetic trajectories of septal spacing in modern cuttlefishes are phylogenetically dependent

Kazuki Noba, Haruhiko Yasumuro, Yuzuru Ikeda, Ryoji Wani

Lethaia, 53(4) 563-573, 2020 Peer-reviewedLast authorCorresponding author
Polymorphism in Late Cretaceous phylloceratid ammonoids: evidence from ontogenetic trajectories of septal spacing

Iwasaki, T., Iwasaki, Y., Wani, R.

Papers in Palaeontology, 6 155-172, 2020 Peer-reviewedLast authorCorresponding author
千葉県君津市川谷地域に露出する中部更新統柿ノ木台層から産出する冷湧水化石群集：その時空分布と共産する自生炭酸塩

間嶋隆一, 越智眞弓, 三浦美佐, 人見真紀子, 齋藤猛, 並木勇樹, 大塚悠佑, 清水秀倫, 野崎篤, 宇都宮正志 …

地質学雑誌, 125 655-683, 2019 Peer-reviewed
Weaving of biomineralization framework in rotaliid foraminifera: Implications for paleoenvironmental reconstructions

Nagai, Y, Uematsu, K, Chen, C, Wani, R, Tyszka, J, Toyofuku, T

Biogeosciences, 15(22) 6773-6789-6789, 2018 Peer-reviewed
Reading the fine print: Ultra-microstructures of foraminiferal calcification revealed using focused ion beam microscopy

Yukiko Nagai, Katsuyuki Uematsu, Ryoji Wani, Takashi Toyofuku

Frontiers in Marine Science, 4(FEB), 2018 Peer-reviewed
Intraspecific variation in cephalopod conchs changes during ontogeny: Perspectives from 3D morphometry of Nautilus pompilius

Tajika, A, Morimoto, N, Wani, R, Klug, C

Paleobiology, 44 118-130, 2018 Peer-reviewed
Ontogenetic trajectories of septal spacing in Early Jurassic belemnites from Germany and France, and their palaeobiological implications

Ryoji Wani, Amane Tajika, Kenji Ikuno, Tetsuro Iwasaki

Palaeontology, 61(1) 77-88, 2018 Peer-reviewedLead author
Geological duration of ammonoids controlled their geographical range of fossil distribution

Ryoji Wani

PEERJ, 5(5:e4108), 2017 Peer-reviewedLead authorCorresponding author
Recent progress in Cretaceous ammonoid paleontology : especially focusing on the Northern Pacific region

WANI Ryoji

(101) 43-59-59, 2017 Peer-reviewedInvitedLead authorCorresponding author
Covariance of sutural complexity with whorl shape: evidence from intraspecific analyses of the Cretaceous ammonoid Desmoceras

Aiba, D, Wani, R

Swiss Journal of Palaeontology, 135 1-10, 2016 Peer-reviewedLast author
Intraspecific variation of phragmocone chamber volumes throughout ontogeny in the modern nautilid Nautilus and the Jurassic ammonite Normannites

Amane Tajika, Naoki Morimoto, Ryoji Wani, Carole Naglik, Christian Klug

PEERJ, 3 e1306, Oct, 2015 Peer-reviewed
Inconsistent oxygen isotopic values between contemporary secreted septa and outer shell walls in modern Nautilus

Akane Ohno, Tsuzumi Miyaji, Ryoji Wani

LETHAIA, 48(3) 332-340, Jul, 2015 Peer-reviewedLast authorCorresponding author
Abrupt changes in distance between succeeding septa at the hatching time in modern coleoids Sepiella japonica and Spirula spirula

Yamaguchi, A., Kumada, Y., Alfaro, A.C., Wani, R.

Swiss Journal of Palaeontology, 134 301-307, 2015 Peer-reviewedLast authorCorresponding author
古生物学からみた頭足類

和仁良二

日本水産学会誌, 81 138-138, 2015 Peer-reviewedInvitedLead authorCorresponding author

Misc.

熊本県海浦地域からの前期ジュラ紀アンモナイトHaugia variabilis (d'Orbigny)の産出報告とその地質学的意義．

和仁良二, 太田亨, 平野弘道

日本古生物学会第153回例会講演予稿集, 第153回例会 35-35, 2004

Research Projects

白亜紀アンモナイト類の化石記録から読み解く海生生物の浮遊幼生期と多様化との関連性

科学研究費助成事業, 基盤研究(C), 日本学術振興会, Apr, 2022 - Mar, 2025

和仁良二
Reconstruction of hatching sizes in the extinct animal, belemnites

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017

WANI RYOJI
Evolutionary history of marine mollusks in warm periods

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, 2009 - 2011

WANI Ryoji

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