Papers - WANI Ryoji
about 51-
Early conch morphology of a gigantic Cretaceous ammonoid, Pachydesmoceras denisonianum (Desmoceratidae)
Wani, R.
PeerJ e19488 1 - 17 2025 [Reviewed]
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Single Work
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Does intraspecific variation in juvenile Late Cretaceous ammonoids correlate with their systematic position, longevity and paleogeography?
Amane Tajika, Takahiro Iida, Ryoji Wani, Neil H. Landman, Kenji Ikuno, and Christian Klug
Swiss Journal of Palaeontology 144 ( 51 ) 2025 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Covariable changes of septal spacing and conch shape during early ontogeny: a common characteristic between Perisphinctina and Ancyloceratina (Ammonoidea, Cephalopoda)
Nishino, Y., Komazaki, K., Arai, M., Hattori, A., Uoya, Y., Iida, T., and Wani, R.
Journal of Paleontology 98 102 - 114 2024 [Reviewed]
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
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A three-dimensionally preserved frog (Amphibia, Anura) from the Lower Cretaceous Kuwajima Formation, Tetori Group, Ishikawa Prefecture, Japan
Mizukami, A., Matsumoto, R., Wani, R., and Evans, S.E.
Paleontological Research 27 333 - 349 2023 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Stepwise growth changes in early post-embryonic stages among Cretaceous tetragonitid ammonoids
Kawakami, Y. and Wani, R.
Paläontologische Zeitschrift 97 469 - 483 2023 [Reviewed]
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://doi.org/10.1007/s12542-023-00650-0
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Ontogenetic trajectories of septal spacing and conch shape in the Late Cretaceous gaudryceratid ammonoids: implications for their post-embryonic palaeoecology
Kawakami Yoshitaka, Uchiyama Naomi, Wani Ryoji
Palaeontology 65 ( 1 ) 2022 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Joint Work
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Conservative ontogenetic trajectories of septal spacing during the post-embryonic stage in Cretaceous ammonoids of the subfamily Desmoceratinae
Takai, F., Matsukuma, S., Hirose, K., Yamazaki, T., Aiba, D., and Wani, R.
Lethaia 55 ( 2 ) 1 - 12 2022 [Reviewed]
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Single Work
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Preservation of nautilid soft parts inside and outside the conch interpreted as central nervous system, eyes, and renal concrements from the Lebanese Cenomanian
Klug, C., Pohle, A., Roth, R., Hoffmann, R., Wani, R., and Tajika, A.
Swiss Journal of Palaeontology 140 ( 1 ) 2021 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Polymorphism in Late Cretaceous phylloceratid ammonoids: evidence from ontogenetic trajectories of septal spacing
Iwasaki Tetsuro, Iwasaki Yui, Wani Ryoji
Papers in Palaeontology 6 155 - 172 2020 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Ontogenetic trajectories of septal spacing in modern cuttlefishes are phylogenetically dependent
Noba Kazuki, Yasumuro Haruhiko, Ikeda Yuzuru, Wani Ryoji
LETHAIA 53 ( 53 ) 563 - 573 2020 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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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，楠 稚枝，佐藤 圭，河潟俊吾，和仁良二，中村栄子，坂井三郎，和田秀樹，北里 洋
地質学雑誌 125 655 - 683 2019 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Reading the fine print: Ultra-microstructures of foraminiferal calcification revealed using focused ion beam microscopy
Nagai, Y., Uematsu, K., Wani, R., Toyofuku, T.
Frontiers in Marine Science 5:67 2018 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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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 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Ontogenetic trajectories of septal spacing of Early Jurassic belemnites from Germany and France and their palaeobiological implications
Wani, R., Tajika, A., Ikuno, K., Iwasaki, T.
Palaeontology 61 77 - 88 2018 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Nagai, Y., Uematsu, K., Chen, C., Wani, R., Tyszka, J., Toyofuku, T.
Biogeosciences 15 6773 - 6789 2018 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
Other Link： https://doi.org/10.5194/bg-15-6773-2018
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Recent progress in Cretaceous ammonoid paleontology : especially focusing on the Northern Pacific region
WANI Ryoji
( 101 ) 43 - 59 2017 [Reviewed] [Invited]
Language：Japanese Publishing type：Research paper (scientific journal) Single Work
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Geological duration of ammonoids controlled their geographical range of fossil distribution
PeerJ ( 5:e4108 ) 2017 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
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Covariance of sutural complexity with whorl shape: evidence from intraspecific analyses of the Cretaceous ammonoid Desmoceras
Aiba, D. and Wani, R.
Swiss Journal of Palaeontology 135 1 - 10 2016 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Inconsistent oxygen isotopic values between contemporary secreted septa and outer shell walls in modern nautilus
Ohno, A., Miyaji, T., and Wani, R.
Lethaia 48 ( 3 ) 332 - 340 2015 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：WILEY Joint Work
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Ammonoid taphonomy
Wani, R. and Gupta, N.S.
Ammonoid Paleobiology: From macroevolution to paleogeography 555–597 2015 [Reviewed] [Invited]
Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Joint Work
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Intraspecific variation of phragmocone chamber volumes throughout ontogeny in modern Nautilus and the Jurassic ammonite Normannites
Tajika, A., Morimoto, N., Wani, R., Naglik, C., and Klug, C.
PeerJ 3 e1306 2015 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PEERJ INC Joint Work
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Higher risk of fatality by predatory attacks in the earlier ontogenetic stages of modern Nautilus pompilius in the Philippines: evidence from the ontogenetic analyses of shell repairs
Yomogida, S. and Wani, R.
Lethaia 46 ( 3 ) 317 - 330 2013.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：WILEY Joint Work
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Limited migration of scaphitid ammonoids: evidence from the analyses of shell whorls
Yahada, H. and Wani, R.
Journal of Paleontology 87 ( 3 ) 406 - 412 2013.5
Language：English Publishing type：Research paper (scientific journal) Publisher：PALEONTOLOGICAL SOC INC Joint Work
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Preferential predatory peeling: ammonoid vs. nautiloid shells from the Upper Carboniferous of Texas, USA
Wani, R., Jenkins, R.G., and Mapes, R.H.
Geobios 45 ( 1 ) 129–137 2012 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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Variable growth modes in Late Cretaceous ammonoids: implications for diverse early life histories
Arai, K. and Wani, R.
Journal of Paleontology 86 ( 2 ) 258 - 267 2012 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PALEONTOLOGICAL SOC INC Joint Work
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Old and sticky - adhesive mechanisms in the living fossil Nautilus pompilius (Mollusca, Cephalopoda)
von Byern J., Wani R., Schwaha T., and Cyran N.
Zoology 115 ( 1 ) 1 - 11 2012 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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Different modes of migration within Late Cretaceous ammonoids in northwestern Hokkaido, Japan: evidence from the analyses of shell whorls
Ikeda, Y. and Wani, R.
Journal of Paleontology 86 ( 4 ) 605 - 615 2012 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PALEONTOLOGICAL SOC INC Joint Work
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Sympatric speciation drove the macroevolution of fossil cephalopods
Wani, R.
Geology 39 ( 11 ) 1079 - 1082 2011 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：GEOLOGICAL SOC AMER Single Work
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Large hatchling size in Cretaceous nautiloids persists across the end-Cretaceous mass extinction: new data of Hercoglossidae hatchlings
Wani, R., Kurihara, K., and Ayyasami, K.
Cretaceous Research 32 ( 5 ) 618 - 622 2011 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
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Intraspecific variation of hatchling size in Late Cretaceous ammonoids from Hokkaido, Japan: implication for planktic duration at early ontogenetic stage
Tajika, A. and Wani, R.
Lethaia 44 ( 3 ) 287 - 298 2011 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：WILEY Joint Work
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Permanent El Niño during the Pliocene warm period not supported by coral evidence
Watanabe, T., Suzuki, A., Minobe, S., Kawashima, T., Kameo, K., Minoshima, K., Aguilar, Y.M., Wani, … Show more authors
Watanabe, T., Suzuki, A., Minobe, S., Kawashima, T., Kameo, K., Minoshima, K., Aguilar, Y.M., Wani, R., Kawahata, H., Sowa, K., Nagai, T., and Kase, T. Hide authors
Nature 471 ( 7337 ) 209 - 211 2011 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：NATURE PUBLISHING GROUP Joint Work
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Conservative evolution in nautiloid shell morphology: evidence from the Pennsylvanian nautiloid Metacoceras mcchesneyi from Ohio, USA
Wani, R. and Mapes, R.H.
Journal of Paleontology 84 ( 3 ) 477 - 492 2010 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PALEONTOLOGICAL SOC INC Joint Work
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In situ Calyptogena colonies from Pliocene back-arc basin fills in Leyte Island, Philippines
Majima, R., Jenkins, R.G., Kase, T., Aguilar, Y.M., Nanjo, T., Wani, R., Wada, H., Fernando, A.G.S. … Show more authors
Majima, R., Jenkins, R.G., Kase, T., Aguilar, Y.M., Nanjo, T., Wani, R., Wada, H., Fernando, A.G.S., and Hayashi, H. Hide authors
The Journal of Geological Society of Japan 116 XV–XVI 2010 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：The Geological Society of Japan Joint Work
Other Link： https://www.jstage.jst.go.jp/article/geosoc/116/10/116_116.10.XV_XVI/_article
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Ontogenetic change and intra-specific variation of shell morphology in the Cretaceous nautiloid (Cephalopoda, Mollusca) Eutrephoceras clementinum (d'Orbigny, 1840) from the Ariyalur area, southern India
Wani, R. and Ayyasami, K.
Journal of Paleontology 83 ( 3 ) 365 - 378 2009 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PALEONTOLOGICAL SOC INC Joint Work
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First discovery of fossil Nautilus pompilius Linnaeus, 1758 (Nautilidae, Cephalopoda) from Pangasinan, northwestern Philippines
Wani, R., De Ocampo, R.S.P., Aguilar, Y.M., Zepeda, M.A., Kurihara, Y., Hagino, K., Hayashi, H. and … Show more authors
Wani, R., De Ocampo, R.S.P., Aguilar, Y.M., Zepeda, M.A., Kurihara, Y., Hagino, K., Hayashi, H. and Kase, T. Hide authors
Paleontological Research 12 ( 1 ) 89 - 95 2008 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：PALAEONTOLOGICAL SOC JAPAN Joint Work
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Differential preservation of the Upper Cretaceous ammonoid Anagaudryceras limatum with corrugated shell in central Hokkaido, Japan
WANI Ryoji
Acta Palaeontologica Polonica 52 ( 1 ) 77 - 84 2007 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：INSTYTUT PALEOBIOLOGII PAN Single Work
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How to recognize in situ fossil cephalopods: evidence from experiments with modern Nautilus
WANI Ryoji
Lethaia 40 ( 4 ) 305 - 311 2007 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：BLACKWELL PUBLISHING Single Work
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Planispiral cephalopod shells as a sensitive indicator of modern and ancient bottom currents: New data from flow experiments with modern Nautilus pompilius
Wani,R.,Ikeda,H.
Palaios 21 ( 3 ) 289 - 297 2006 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：SEPM-SOC SEDIMENTARY GEOLOGY Joint Work
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Santonian in India
Ayyasami, K., Anantharaman, S., and Wani, R.
Micropaleontology: Application in Stratigraphy and Paleoceanography 91 - 102 2006 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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The peculiar taphonomy of the streamlined late Campanian ammonite Metaplacenticeras subtilistriatum from northern Hokkaido, Japan
WANI Ryoji
Cretaceous Research 27 ( 6 ) 863 - 871 2006 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Single Work
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New look at ammonoid taphonomy, based on field experiments with modern chambered nautilus
Wani, R., Kase, T., Shigeta, Y. and De Ocampo, R.
Geology 33 ( 11 ) 849 - 852 2005 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：GEOLOGICAL SOC AMER Joint Work
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First occurrence of Haugia cf. variabilis (d'Orbigny) (Ammonoidea) from the Lower Jurassic of the Uminoura area, western Kyushu, Japan
Wani, R., Ohta, T., and Hirano, H.
Paleontological Research 8 ( 2 ) 123 - 128 2004 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：The Palaeontological Society of Japan Joint Work
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Takashima, R., Kawabe, F., Nishi, H., Moriya, K., Wani, R., and Ando, H.
Cretaceous Research 25 ( 3 ) 365 - 390 2004 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Joint Work
Other Link： http://www.sciencedirect.com/science/article/pii/S019566710400028X?via%3Dihub
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インド南部アリヤルール地域の白亜系層序：総説
和仁良二，Ayyasami, K.
三笠市立博物館紀要 8 1 - 15 2004
Language：Japanese Publishing type：Research paper (bulletin of university, research institution) Joint Work
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Kase, T., Aguilar, Y.M., Kameo, K. and Wani, R.
National Science Museum Monographs 24 187 - 195 2004
Language：English Publishing type：Research paper (scientific journal) Publisher：National Science Museum Joint Work
Other Link： http://ci.nii.ac.jp/els/contents110004708023.pdf?id=ART0007449984
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Taphofacies models for Upper Cretaceous ammonoids from the Kotanbetsu area, northwestern Hokkaido, Japan
WANI Ryoji
Palaeogeography, Palaeoclimatology, Palaeoecology 199 ( 1-2 ) 71 - 82 2003 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Single Work
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Upper Albian to Lower Cenomanian biostratigraphy in the Oyubari area, Hokkaido, Japan: toward a Cretaceous biochronology for the North Pacific
Kawabe, F., Takashima, R., Wani, R., Nishi, H. and Moriya, K.
Acta Geologica Polonica 53 ( 2 ) 81 - 91 2003 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Institute of Geology, University of Warsaw Joint Work
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Reworked ammonoids and their taphonomic implications in the Upper Cretaceous of northwestern Hokkaido, Japan
WANI Ryoji
Cretaceous Research 22 ( 5 ) 615 - 625 2001 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER Single Work
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Upper Cretaceous biostratigraphy in the Kotanbetsu area, northwestern Hokkaido
WANI Ryoji,HIRANO Hiromichi
The Journal of Geological Society of Japan 106 ( 3 ) 171 - 188 2000.3 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Geological Society of Japan Joint Work
Other Link： https://www.jstage.jst.go.jp/article/geosoc1893/106/3/106_3_171/_article/-char/ja/
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Upper Cretaceous biostratigraphy in the Kotanbetsu area, northwestern Hokkaido-Part2.-
WANI Ryoji,HIRANO Hiromichi
47 7 - 36 1999
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work