Hasegawa, Yoshikazu

27 publications

Shikama, Tokio; Hasegawa, Yoshikazu; Otsuka, Hiroyuki (detail)
1973Geological range of mammals in the Japanese Neogene. In: Neogene biostratigraphy and radiometric dating of Japan.
Mem. Geol. Soc. Japan 8: 137-141. 2 figs.
—In Japanese; Engl. summ. Summarizes the stratigraphic ranges of Hydrodamalis sp., Desmostylus, and Paleoparadoxia.
Hasegawa, Yoshikazu (detail)
1977[The reconstruction of the queer mammal Desmostylus.]
Anima (Tokyo) 5(12)(57): 90-91. 11 figs. Dec. 1977.
—In Japanese. Pop. acc. of reconstructions of the body forms of Desmostylus and Paleoparadoxia, illustrated by 11 artist's renderings.
Hasegawa, Yoshikazu (detail)
1978[Problems concerning some Cenozoic terrestrial vertebrates from Japan; with comment by Y. Okazaki.] [Abstr.]
Bull. Mizunami Fossil Mus. No. 5: 159. Dec. 25, 1978.
—In Japanese.
Hasegawa, Yoshikazu; Nokariya (detail)
1979[Mammalian specimens from the Nagarabaru-Nishi Shellmound.]
Ieson Bunkazai Chosa Hokokusho [Iko Village Cultural Assets Investigative Report] No. 8: 175-229. 16 tabs. 4 figs. 17 pls.
—In Japanese. Reports specimens of Dugong dugon from an archeological site.
Hasegawa, Yoshikazu (detail)
1980Notes on vertebrate fossils from late Pleistocene to Holocene of Ryukyu Islands, Japan.
Quat. Res. (Jap. Assoc. Quat. Res.) 18(4): 263-267. 2 tabs. Feb. 1980.
—In Japanese; Engl. summ. Dugong.
Hasegawa, Yoshikazu; Nohara, Tomohide (detail)
1982Two large tusks of Dugong from Okinawa and Iriomote Islands, Ryukyu Islands.
Sci. Rept. Yokohama Natl. Univ., Sect. II, Biol. & Geol. No. 29: 29-32. 1 fig. 1 pl. Nov. 1982.
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Kamiya, Toshiro; Pirlot, Paul; Hasegawa, Yoshikazu (detail)
1985Comparative brain morphology of miocene [sic] and recent sirenians.
Fortschritte der Zool. 30: 541-544. 1 tab. 1 fig.
—The Mioc. "sirenian" compared with the Recent dugong is actually Paleoparadoxia tabatai.
Suzuki, Keiji; Hasegawa, Yoshikazu; Ogasawara, Kenshiro; Yomogida, Hiroshi; Hikichi, Katsumasa; Taniguchi, Satoru; Makuta, Kazuyoshi; Fujita, Takashi; Kawamura, Tomoyoshi; Yamaki, Zenbei; Kumasaka, Hiroko; Kato, Yoshiaki (detail)
1986aNew skeleton of Paleoparadoxia with stratigraphical and sedimentary environmental remarks in Yanagawa-town, Date-gun, Fukushima Prefecture, Japan. In: Essay in Geology (Prof. Makoto Kitamura Commemorative Volume):
453-464. 2 tabs. 4 figs. 1 pl.
—In Japanese; Engl. summ.
Hasegawa, Yoshikazu (detail)
1986On morphological characteristics of Paleoparadoxia from the Yanagawa Formation. In: Research Report of Paleoparadoxia from Yanagawa Formation.
Res. Rept. Cultural Properties of Yanagawa-machi 11: 17-22.
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Hasegawa, Yoshikazu; Tanaka, Hiroyuki (detail)
1987[Desmostylus from Takasaki.] In: Y. Hasegawa (ed.), [Study on fossil marine mammals from Japan. (Subject of study) Studies on biostratigraphy and paleontology of Cenozoic marine mammals.]
Japan, Ministry of Education, Aid for Scientific Study, Synthetic Study A, Subject No. 61304010: 44. 1 fig. March 1987.
—In Japanese.
Hasegawa, Yoshikazu; Okazaki, Yoshihiko; Kuga, Naoyuki; Kohno, Naoki (detail)
1988[Comparison of mammal fossils in the Tomikusa Formation, Mizunami Formation, and Isshi Formation.] In: Y. Hasegawa (ed.), [Study on fossil marine mammals from Japan. (Subject of study) Studies on biostratigraphy and paleontology of Cenozoic marine mammals.]
Japan, Ministry of Education, Aid for Scientific Study, Synthetic Study A, Subject No. 61304010: 15-17. 1 tab. 2 figs. March 1988.
—In Japanese.
Kohno, Naoki; Hasegawa, Yoshikazu (detail)
1988[First discovery of Imagotaria from Japan and its significance.] In: Y. Hasegawa (ed.), [Study on fossil marine mammals from Japan. (Subject of study) Studies on biostratigraphy and paleontology of Cenozoic marine mammals.]
Japan, Ministry of Education, Aid for Scientific Study, Synthetic Study A, Subject No. 61304010: 87-89. 2 figs. March 1988.
—In Japanese.
Hasegawa, Yoshikazu (detail)
1988[Reconstruction of the skeleton of Paleoparadoxia.] In: Y. Hasegawa (ed.), [Study on fossil marine mammals from Japan. (Subject of study) Studies on biostratigraphy and paleontology of Cenozoic marine mammals.]
Japan, Ministry of Education, Aid for Scientific Study, Synthetic Study A, Subject No. 61304010: 102-104. 2 figs. March 1988.
—In Japanese.
Satoh, Atsushi; Hashimoto, Kazuo; Hasegawa, Yoshikazu (detail)
1989Early Miocene desmostylid skull from Goyasu Formation, Iwaki City, Fukushima Prefecture, Japan.
Sci. Repts. Yokohama Natl. Univ., Sect. II, Biol. & Geol. No. 36: 57-70. 3 tabs. 3 figs. 2 pls. Oct. 1989.
—In Japanese; Engl. summ. The specimen is considered "the earliest desmostylid to date in the Japanese Archipelago."
Oishi, Masayuki; Hasegawa, Yoshikazu; Maruyama, Toshiaki; Nakashita, Shigeo; Kawakami, Takeshi (detail)
1990An occurrence of postcranial skeleton of Desmostylus from Kintaichi, Ninohe City, Iwate Prefecture, northeast Japan.
Bull. Iwate Prefectural Mus. No. 8: 1-16. 1 tab. 14 figs. Aug. 1990.
—In Japanese; Engl. summ. According to Hasegawa, the specimen is probably Paleoparadoxia rather than Desmostylus.
Satoh, Atsushi; Hasegawa, Yoshikazu; Koda, Yoshiki; Ogai, Kyohiko (detail)
1992[Desmostylus molar from Taga Formation in Ibaraki City, Ibaraki Prefecture.]
Geology Club Bulletin (Heichigaku Doukoukai Kaihou) No. 19 (Suppl.): 21-25. 2 figs. 1 pl. Dec. 1992.
—In Japanese.
Hasegawa, Yoshikazu; Suzuki, Keiji; Taketani, Yojiro (detail)
1993[On a Paleoparadoxia from Yanagawa-machi, Date-gun, Fukushima Prefecture.]
Yanagawa-cho-shi (Yanagawa History) 4, data volume I: 85-104. 2 tabs. 7 figs. 5 pls.
—In Japanese.
Hasegawa, Yoshikazu; Taketani, Yojiro (detail)
1994Paleoparadoxia tabatai from Yanagawa-machi, Fukushima Prefecture, northeast Japan.
Research Rept. Fukushima Mus. 30: 1-69. 11 tabs. 15 figs. 30 pls. Mar. 1994.
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Hasegawa, Yoshikazu; Muramatsu, Takeshi; Miyazawa, Yuzuru (detail)
1995A desmostylian tooth from the Tomikusa Group, Nagano Prefecture.
Sci. Repts. Yokohama Natl. Univ., Sect. II, Biol. & Geol. No. 41/42: 1-11. 2 tabs. 2 figs. 1 pl. Oct. 1995.
—In Japanese; Engl. summ. Describes a left upper second molar of a Middle Miocene Desmostylus.
Hasegawa, Yoshikazu; Taketani, Yojiro; Taru, Hajime; Sakamoto, Osamu; Manabe, Makoto (detail)
1995On sexual dimorphism in Paleoparadoxia tabatai.
The Island Arc 3(4): 513-521. 2 tabs. 4 figs. "Dec. 1994" (publ. Nov. 1995).
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Hasegawa, Yoshikazu (detail)
1997Review on paleontological studies of marine mammals of the Japanese Archipelago.
IBI Reports (Kamogawa, Japan, Intl. Marine Biol. Research Inst.) No. 7: 139-145. 2 figs.
—In Japanese; Engl. summ. Discusses both sirs. and desmostylians.
Hasegawa, Yoshikazu; Takakuwa, Yuji; Nomura, Masahiro; Kurosawa, Toshie; Sudo, Yutaka; Takayama, Yoshitaka (detail)
2000On occurrence of desmostylian fossils from the upper part of the Niwaya Formation, Tomioka Group, Gunma, Japan.
Bull. Gunma Mus. Nat. Hist. 4: 57-66. 6 figs.
—In Japanese; Engl. summ.
Hasegawa, Yoshikazu; Kimura, Toshiyuki; Matsumoto, Ryosuke (detail)
2006A smaller manus of the Paleoparadoxia (Mammalia: Desmostylia) from the Haratajino Formation, Tomioka Group, Gunma, Japan.
Bull. Gunma Mus. Nat. Hist. 10: 37-48. 3 tabs. 4 figs. 4 pls.
—In Japanese; Engl. summ. Describes a forelimb of a Middle Mioc. specimen of Paleoparadoxia sp., smaller than the Izumi specimen.
Hasegawa, Yoshikazu (detail)
2007[Contributions of Dr. Shigeyasu Tokunaga in paleovertebrate zoology. In: Festschrift for Dr. Shigemoto Tokunaga, Supplement:]
153-174. 17 figs. Oct. 2007.
—In Japanese. Shigemoto Tokunaga was one of the sons of Shigeyasu Tokunaga.
Hasegawa, Yoshikazu; Kohno, Naoki (detail)
2007Case 3384: Cornwallius tabatai Tokunaga, 1939 (currently Paleoparadoxia tabatai; Mammalia, Desmostylia): proposed conservation of usage of the specific name by the designation of a neotype.
Bull. Zool. Nomenclature 64(2): 113-117. June 2007.
—In its Opinion 2232, the ICZN (2009) declined to take action on this proposal, on the grounds that Inuzuka's (2005) designation of a lectotype, which threatened the established usage, was invalid to start with. Consequently, Shikama's (1966) original designation of the Izumi skeleton as neotype of P. tabatai was maintained, as Hasegawa & Kohno desired.
Hasegawa, Yoshikazu; Kimura, Toshiyuki (detail)
2008On the two large specimens of Paleoparadoxia (Middle Miocene) from western Gunma Prefecture, Japan.
Bull. Gunma Mus. Nat. Hist. 12: 15-33. 1 tab. 6 figs. 8 pls.
—In Japanese; Engl. summ. Describes two sets of postcranial remains of large Paleoparadoxia sp.: the Kurosawa specimen and the stratigraphically-higher Nakajima specimen, both from the Annaka Group.
Hasegawa, Yoshikazu; Asami, Kiyohide; Kimura, Toshiyuki; Matsui, Kumiko; Kohno, Naoki (detail)
2014On the Early Miocene Paleoparadoxia from the Upper Sankebetsu Formation at Chikubetsu River, Tomamae-gun, north-western Hokkaido, Japan.
Bull. Gunma Mus. Nat. Hist. 18: 69-76. 1 tab. 4 figs. 1 pl.
—In Japanese; Engl. summ. Describes an isolated cervical vertebra.