Ikuwo Obata

Fukada Geological Institute — Japan

Earth and Planetary Sciences · Physical Sciences

16h-index710citations74works0.02yr avg
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Research Topics

Paleontology and Stratigraphy of Fossils(33), Geology and Paleoclimatology Research(31), Paleontology and Evolutionary Biology(17), Evolution and Paleontology Studies(14), Isotope Analysis in Ecology(9)

Publications74 total

Aptian and Albian ammonites of the Miyako Group, Japan
Cretaceous Research·2017· 8 cited
Revision of Yabeiceras, a Coniacian (Late Cretaceous) ammonite genus, based on material from the type locality in Fukushima, Japan
Cretaceous Research·2016· 4 cited
Barremian–Albian (Early Cretaceous) ammonite faunas of the Katsuuragawa Basin, southwest Japan
Cretaceous Research·2015· 15 cited
パキスタン北部,ペシャワル南部のwest Kohatから産出したIndoceras baluchistanense Noetling,1897
2014
A large Shasticrioceras (heteromorph ammonite) from the Lower Cretaceous Hanoura Formation in Tokushima Prefecture, Japan
Tokyo Gakugei University Repository (Tokyo Gakugei University)·2013· 1 citedOpen Access
A review on the Cretaceous Raga Formation of the Miyako Group, and its related rocks in Japan
Medical Entomology and Zoology·2013Open Access
Santonian fossils from the Upper Cretaceous Atokura Formation in Kwanto Mountains, Japan, and their significances
Tokyo Gakugei University Repository (Tokyo Gakugei University)·2012· 2 citedOpen Access
Early Cretaceous ammonite fauna of Catanduanes Island, Philippines
Cretaceous Research·2012· 8 cited
The late Dr Shingo Yehara's Collection from the Miyako Group, at the Tenri High School of the Nara Prefecture, Japan (Lower Cretaceous ammonites from the Miyako Group, part 10)
Medical Entomology and Zoology·2012· 1 cited
Saichania chulsanensis (Ornithischia, Ankylosauridae) from the Upper Cretaceous of Mongolia
Palaeontographica Abteilung A·2011· 53 cited
Some cymatoceratids from the Lower Cretaceous Miyako Group, Iwate Prefecture, Japan
Medical Entomology and Zoology·2011· 2 cited
A gigantic Ammonoceratites from the Miyako Group, Iwate Prefecture, Japan (Lower Cretaceous ammonites from the Miyako Group, Part 9)
Medical Entomology and Zoology·2010· 1 cited
Revised age of the Sasayama Group, southwest Japan, based on ostracode and conchostracan bio-stratigraphy and zircon fission-track dating
The Journal of the Geological Society of Japan·2010· 14 citedOpen Access
Tatsuro Matsumoto: a memorial
Cretaceous Research·2009
Restudy of Crioceratites ishiwarai, an early Cretaceous ammonoid from the Oshima Formation, Kesennuma, Miyagi Prefecture, Japan
Annual report - Society for Libyan Studies·2009
日本,宮城県,気仙沼,大島累層産の初期白亜紀アンモナイトであるCrioceratites ishiwaraiの再研究
2009
Supplementary description of the ammonoids from the Barremian to the Albian of the Choshi Peninsula, Japan
Cretaceous Research·2008· 18 cited
A new species Of<i>Taniwhasaurus</i>(Mosasauridae, Tylosaurinae) from the upper Santonian-lower Campanian (Upper Cretaceous) of Hokkaido, Japan
Journal of Vertebrate Paleontology·2008· 32 cited
A large hamulinid ammonoid from the lower Cretaceous arida formation, Wakayama Prefecture, Japan
Medical Entomology and Zoology·2008· 1 cited
Barremian–Aptian (Early Cretaceous) ammonoids from the Choshi Group, Honshu (Japan)
Cretaceous Research·2007· 25 cited
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Frequent Co-authors

Masaki Matsukawa(12), Kazushige Tanabe(6), Tatsuro Matsumoto(6), Masao Futakami(5), Yoshio Fukuda(5), 棚部 一成(4), 小畠 郁生(4), Yasumitsu Kanie(4), 福田 芳生(3), Hiromichi Hirano(3), Tadashi Suzuki(3), Martin G. Lockley(2), Seijuro Maiya(2), Yoshikazu Hasegawa(2), Makoto Itô(2), Yoshitaro Kawashita(2), Kenneth Carpenter(1), Shingo HAYASHI(1), Yoshio Kobayashi(1), Teresa Maryańska(1)