Tajika, Amane(The HAKUBI Center for Advanced Research) | Activity Database on Education and Research, Kyoto University

Tajika, Amane

The HAKUBI Center for Advanced Research Program-Specific Assistant Professor

Last Updated :2025/05/22

Basic Information

Email Address

Email Address
tajika.amane.4ukyoto-u.ac.jp

Professional Memberships

PALAEONTOLOGICAL SOCIETY OF JAPAN

Geological Society of America

Academic Degree

20 Sep. 2013
修士（理学）（University of Zurich）

29 Sep. 2017
博士（理学）（University of Zurich）

Academic Resume (Undergraduate School/Majors)

横浜国立大学, 教育人間科学部地球環境課程, 卒業

Research History

From Jul. 2022, To Present
American Museum of Natural History, Division of Paleontology (Invertebrates), Research Associate

From Oct. 2020, To Sep. 2023
University of Tokyo, University Museum, JSPS Cross-border Postdoctoral Fellow

From Feb. 2023, To Sep. 2023
University of Zurich, Paleontological Institute, JSPS Cross-border Postdoctoral Fellow

From Oct. 2020, To Feb. 2023
American Museum of Natural History, Division of Paleontology (Invertebrates), JSPS Cross-border Postdoctoral Fellow

From Apr. 2020, To Sep. 2020
American Museum of Natural History, Division of Paleontology (Invertebrates), JSPS Postdoctoral Fellow

From Apr. 2020, To Sep. 2020
University of Tokyo, University Museum, JSPS Postdoctoral Fellow

From Apr. 2018, To Mar. 2020
American Museum of Natural History, Division of Paleontology (Invertebrates), JSPS Overseas Research Fellow

From Mar. 2018, To Mar. 2018
University of Zurich

From Jan. 2018, To Feb. 2018
Naturmuseum St. Gallen

From Oct. 2017, To Dec. 2017
University of Zurich

ID,URL

J-Global ID
201801000052792388

researchmap URL

https://researchmap.jp/atajika

Last Updated :2025/05/22

Research

Research Interests

Marine Biology

Taxonomy

Biostratigraphy

Fossil

Cephalopoda

Evolution

Research Areas

Natural sciences, Biogeoscience, Evolutionary Biology; Paleontology

Papers

Lethal injuries on the scaphitid ammonoid Hoploscaphites nicolletii (Morton, 1842) in the Upper Cretaceous Fox Hills Formation, South Dakota, USA
Amane Tajika; Anastasia Rashkova; Neil H. Landman; Adiël A. Klompmaker
Swiss Journal of Palaeontology, 07 Jan. 2025, Peer-reviewed, Lead author, Corresponding author

Ammonoid Locomotion
Amane Tajika
Topics in Geobiology, 2015

Mature Modifications and Sexual Dimorphism
Amane Tajika
Topics in Geobiology, 2015

New Discovery of Rhyncholites and Conchorhynchs (Cephalopod Jaw Elements) from the Upper Cretaceous Mount Laurel Formation of Delaware
Amane Tajika; Neil H. Landman; Hiromichi Koyasu; Amy Broussard; Lian Anderson; Kenji Ikuno; Kenji Ikuno
American Museum Novitates, 10 May 2023, Peer-reviewed

Ammonoid extinction versus nautiloid survival: Is metabolism responsible?
Amane Tajika; Neil H. Landman; J. Kirk Cochran; Kozue Nishida; Kotaro Shirai; Toyoho Ishimura; Naoko Murakami-Sugihara; Kei Sato
Geology, 25 Apr. 2023, Peer-reviewed

Record of a dense succession of drowning phases in the Alpstein mountains, north-eastern Switzerland: part I—the Lower Cretaceous Tierwis Formation (latest Hauterivian to latest Barremian)
Antoine Pictet; Peter Kürsteiner; Karl Tschanz; Amane Tajika
Swiss Journal of Geosciences, Dec. 2022, Peer-reviewed

Intra- and interspecific variability in offspring size in nautilids
Amane Tajika; Neil H. Landman; Mariah Slovacek; Kozue Nishida; Wataru Morita; James D. Witts
Lethaia, 07 Nov. 2022, Peer-reviewed

Isotopic evidence concerning the habitat of Nautilus macromphalus in New Caledonia
Amane Tajika; Neil H. Landman; J. Kirk Cochran; Claire Goiran; Aubert Le Bouteiller
PLOS ONE, 26 Jul. 2022, Peer-reviewed

Is the relative thickness of ammonoid septa influenced by ocean acidification, phylogenetic relationships and palaeogeographic position?
Céline Weber; Michael Hautmann; Amane Tajika; Christian Klug
Swiss Journal of Palaeontology, Dec. 2022, Peer-reviewed

Upper upper Albian ( Mortoniceras rostratum Zone) cephalopods from Clansayes (Drôme, south-eastern France)
Romain Jattiot; Jens Lehmann; Benjamin Latutrie; Amane Tajika; Emmanuelle Vennin; Pauline Vuarin; Arnaud Brayard; Emmanuel Fara; Vincent Trincal
Acta Geologica Polonica, 08 Jun. 2022, Peer-reviewed

Significance of the suture line in cephalopod taxonomy revealed by 3D morphometrics in the modern nautilids Nautilus and Allonautilus
Amane Tajika; Naoki Morimoto; Neil H. L; man
Scientific Reports, Aug. 2021, Peer-reviewed

First discovery of nautilids from the Albian–Cenomanian succession of the Koppeh Dagh Basin, NE Iran
Javad Sharifi; Amane Tajika; Alireza Mohammadabadi; Mohammad Hossein Tabari Abkuh
Swiss Journal of Palaeontology, Jul. 2021, Peer-reviewed

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; Alex; er Pohle; Rosemarie Roth; Ren{\'{e } } Hoffmann; Ryoji Wani; Amane Tajika
Swiss Journal of Palaeontology, Jul. 2021, Peer-reviewed

Reappraisal of the latest Albian (Mortoniceras fallax Zone) cephalopod fauna from the classical Salazac locality (Gard, southeastern France)
Romain Jattiot; Jens Lehmann; Benjamin Latutrie; Pauline Vuarin; Amane Tajika; Emmanuelle Vennin
Geobios, Feb. 2021, Peer-reviewed

Patterns of intraspecific variation through ontogeny: a case study of the Cretaceous nautilid Eutrephoceras dekayi and modern Nautilus pompilius
Amane Tajika; Neil H. Landman; Naoki Morimoto; Kenji Ikuno; Tom Linn
Palaeontology, 19 Sep. 2020, Peer-reviewed

How many ontogenetic points are needed to accurately describe the ontogeny of a cephalopod conch? A case study of the modern nautilid Nautilus pompilius
Amane Tajika
PeerJ, 26 Mar. 2020, Peer-reviewed, Lead author

Chamber volume development, metabolic rates, and selective extinction in cephalopods.
Amane Tajika; Neil H Landman; René Hoffmann; Robert Lemanis; Naoki Morimoto; Christina Ifrim; Christian Klug
Scientific reports, 19 Feb. 2020, Peer-reviewed

Ecological disparity is more susceptible to environmental changes than familial taxonomic richness during the Cretaceous in the Alpstein region (northeastern Switzerland)
Amane Tajika
Swiss Journal of Palaeontology, Mar. 2018, Peer-reviewed

New Albian ammonite faunas from Semelenberg (Alpstein, Switzerland) and their paleoecology
Amane Tajika
Swiss Journal of Palaeontology, Mar. 2018, Peer-reviewed

Intraspecific variation in cephalopod conchs changes during ontogeny: Perspectives from three-dimensional morphometry of Nautilus pompilius
Amane Tajika; Naoki Morimoto; Ryoji Wani; Christian Klug
Paleobiology, 01 Feb. 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, 05 Oct. 2017, Peer-reviewed

The old and the new plankton: ecological replacement of associations of mollusc plankton and giant filter feeders after the Cretaceous?
Amane Tajika
PeerJ, 09 Jan. 2018, Peer-reviewed

Cephalopod associations and palaeoecology of the Cretaceous (Barremian-Cenomanian) succession of the Alpstein, northeastern Switzerland
Amane Tajika; Peter Kursteiner; Antoine Pictet; Jens Lehmann; Karl Tschanz; Romain Jattiot; Christian Klug
CRETACEOUS RESEARCH, Feb. 2017, Peer-reviewed

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, Oct. 2015, Peer-reviewed

Empirical 3D model of the conch of the Middle Jurassic ammonite microconch Normannites: its buoyancy, the physical effects of its mature modifications and speculations on their function
Amane Tajika; Carole Naglik; Naoki Morimoto; Enric Pascual-Cebrian; Dominik Hennhoefer; Christian Klug
HISTORICAL BIOLOGY, Feb. 2015, Peer-reviewed

Growth trajectories of some major ammonoid sub-clades revealed by serial grinding tomography data
Carole Naglik; Claude Monnet; Stefan Goetz; Christian Kolb; Kenneth De Baets; Amane Tajika; Christian Klug
LETHAIA, Jan. 2015, Peer-reviewed

Intraspecific variation of hatchling size in Late Cretaceous ammonoids from Hokkaido, Japan: implication for planktic duration at early ontogenetic stage
Amane Tajika; Ryoji Wani
LETHAIA, Sep. 2011, Peer-reviewed

Misc.

第5回国際古生物学会議参加報告
田近周
Mar. 2019

Fossilien im Alpstein-Gebiet
Amane Tajika
Viertel Jahrs Schrift, Naturforschende Gesellschaft in Zürich, 2018

Books and Other Publications

Fossilien im Alpstein
Amane Tajika, Contributor
Appenzeller Vorlag, Mar. 2018, Not refereed
Find Kyoto University's collection of books :

Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich
Amane Tajika, Single work
2018

Ammonoid Paleobiology
Amane Tajika, Joint work
Springer Netherlands, 2015, Not refereed
Find Kyoto University's collection of books :

Awards

21 Nov. 2015
Swiss Commission of Paleontology Prize（Swiss Geological Society）

27 Jan. 2018
Oswald-Heer Prize（スイス自然科学連合）

External funds: Kakenhi

Challenges in Unraveling the Behavioral Ecology of Marine Organisms Using an Advanced Isotope Analytical System
Grant-in-Aid for Scientific Research (B)
Basic Section 40030:Aquatic bioproduction science-related
University of Tsukuba
西田梢
From 01 Apr. 2023, To 31 Mar. 2027, Granted
安定同位体比;魚類;頭足類;行動生態;クランプトアイソトープ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23H02284/

「生きた化石」現生オウムガイの高精度殻分析による化石頭足類分類精度の飛躍的向上
Grant-in-Aid for Early-Career Scientists
Basic Section 17050:Biogeosciences-related
The University of Tokyo
田近周
From 01 Apr. 2021, To 31 Mar. 2024, Granted
頭足類;化石;分類学;オウムガイ;形態
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K14028/

Ultra-high-resolution stable isotopic analysis of cephalopod jaws
Grant-in-Aid for Early-Career Scientists
Basic Section 17050:Biogeosciences-related
Kyoto University
田近周
From 01 Apr. 2024, To 31 Mar. 2027, Granted
安定同位体;炭酸塩;頭足類
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K17158/

Challenges in Unraveling the Behavioral Ecology of Marine Organisms Using an Advanced Isotope Analytical System
Grant-in-Aid for Scientific Research (B)
Basic Section 40030:Aquatic bioproduction science-related
Tokyo Institute of Technology;University of Tsukuba
西田梢
From 01 Apr. 2023, To 31 Mar. 2027, Granted
安定同位体比;魚類;頭足類;行動生態;クランプトアイソトープ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K26977/

「生きた化石」現生オウムガイの高精度殻分析による化石頭足類分類精度の飛躍的向上
Grant-in-Aid for Early-Career Scientists
Basic Section 17050:Biogeosciences-related
Kyoto University;The University of Tokyo
田近周
From 01 Apr. 2021, To 31 Mar. 2025, Granted
頭足類;形態;化石;分類学;オウムガイ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K14028/

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