Inuzuka, Norihisa: SEE ALSO Aizu Fossil Research Group; Ijiri & Inuzuka, 1989; Kamei et al., 1989; Kaneko & Inuzuka, 1992; Shimada & Inuzuka, 1994; Yamaguchi et al., 1981.
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Inuzuka, Norihisa
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1977 |
On the right third inferior molar of Paleoparadoxia tabatai from "Wainai" remains, Iwate Prefecture.
Earth Science (Chikyu Kagaku) 31(4): 165-166. 2 figs. July 1977.
–In Japanese.
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Inuzuka, Norihisa; Iwamizama Research Group
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1980 |
First discovery of Dugong (Dugonginae) from the Middle Miocene in Kogawa, Kitahiyama-cho, Hokkaido.
Jour. Geol. Soc. Japan 86(9): 639-641. 2 figs. Sept. 1980.
–In Japanese. Describes an isolated tooth identified as a Dugong molar. I have suggested (in Barnes et al., 1985: 31-32 and Takahashi et al., 1986: 317) that it may instead represent Paleoparadoxia.
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Inuzuka, Norihisa; Murai, Takefumi
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1980 |
On a left third inferior molar of Paleoparadoxia tabatai from the Moniwa Formation, Miyagi prefecture.
Earth Science (Chikyu Kagaku) 34(2): 105-108. 1 tab. 4 figs. March 1980.
–In Japanese.
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Inuzuka, Norihisa
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1980a |
The skeleton of Desmostylus mirabilis from South Sakhalin. I. Atlas and thoracic vertebrae.
Earth Science (Chikyu Kagaku) 34(4): 205-214. 2 tabs. 6 figs. 9 pls. July 1980.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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1980b |
The skeleton of Desmostylus mirabilis from South Sakhalin. II. Lumbar vertebrae, sacrum and coccygeal vertebrae.
Earth Science (Chikyu Kagaku) 34(5): 247-257. 2 tabs. 5 figs. 6 pls. Sept. 1980.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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1981a |
The skeleton of Desmostylus mirabilis from South Sakhalin. III. Ribs, scapula and os coxae.
Earth Science (Chikyu Kagaku) 35(1): 1-18. 2 tabs. 20 figs. 6 pls. Jan. 1981.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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1981b |
The skeleton of Desmostylus mirabilis from South Sakhalin. IV. Metacarpus.
Earth Science (Chikyu Kagaku) 35(5): 240-244. 2 figs. 2 tabs. 1 pl. Sept. 1981.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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1981c |
A trial method of the mounting -- basis of the skeletal reconstruction of Desmostylus.
Fossil Club Bull. 14: 1-7.
–In Japanese.
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Inuzuka, Norihisa
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1982a |
The skeleton of Desmostylus mirabilis from South Sakhalin. V. Limb bones.
Earth Science (Chikyu Kagaku) 36(3): 117-127. 1 tab. 8 figs. 2 pls. May 1982.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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1982b |
[Atlas of reconstructed desmostylians.]
Saitama (Japan), Assoc. for the Geological Collaboration in Japan: [1-18]. 32 figs.
–In Japanese. A compilation of 32 illustrations of skeletal and life restorations of desmostylians by various workers, with two pages of text. It originally appeared (with different text and two maps) in the abstracts volume of the Association's 36th annual meeting (Chichibu City, Aug. 7-9, 1982), pp. 44-61.
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Inuzuka, Norihisa
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1984a |
[Restoration of Desmostylus.]
Tokyo, Kaimeisha: 1-146. 1 tab. 38 figs. Sept. 1984.
–In Japanese. Review: T. Urushido, Modern Geology 9: 325-326, 1985.
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Inuzuka, Norihisa
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1984b |
Skeletal restoration of the desmostylians: herpetiform mammals.
Mem. Fac. Sci. Kyoto Univ., Ser. Biol. 9(2): 157-253. 11 tabs. 27 figs. 11 pls. Oct. 1984.
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Inuzuka, Norihisa
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1984c |
Studies and problems on the Order Desmostylia.
Monogr. Assoc. Geol. Collab. in Japan 28: 1-12. 3 tabs. 2 figs. May 1984.
–In Japanese; Engl. summ. See also T. Kamei (1984).
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Inuzuka, Norihisa
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1984d |
Morphological restoration of Desmostylus.
Monogr. Assoc. Geol. Collab. in Japan 28: 101-118. 2 tabs. 6 figs. 6 pls. May 1984.
–In Japanese; Engl. summ. See also T. Kamei (1984).
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Inuzuka, Norihisa
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1985 |
Are "herpetiform mammals" really impossible? A reply to Halstead's discussion.
Mem. Fac. Sci. Kyoto Univ., Ser. Biol. 10(2): 145-150. 2 figs. Sept. 1985.
–Japanese transl.: Jour. Fossil Research 18(2): 69-72, 2 figs., Dec. 1985. See L. B. Halstead (1985).
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Inuzuka, Norihisa
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1986 |
Hyracoidea; Proboscidea; Desmostylia; Sirenia. In: M. Goto & N. Otaishi (eds.), Comparative odontology.
Tokyo, Ishiyaku-shuppan: 177-187.
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Inuzuka, Norihisa; Karasawa, Hiroaki
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1986 |
Some fossils of Paleoparadoxia from Miocene calcareous sandstones on the Noto Peninsula, central Japan.
Earth Science (Chikyu Kagaku) 40(4): 294-300. 1 tab. 7 figs. July 1986.
–In Japanese.
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Inuzuka, Norihisa
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1987a |
[Evolutionary significance of primitive desmostylians.] 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: 35-43. 1 fig. March 1987.
–In Japanese.
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Inuzuka, Norihisa
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1987b |
Primitive desmostylians, Behemotops and the evolutionary pattern of the Order Desmostylia. In: Professor Masaru Matsui Memorial Volume.
Sapporo: 13-25. Pls. 1-2. May 1987.
–In Japanese; Engl. summ. Coins the new familial name Behemotopsidae (16).
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Inuzuka, Norihisa
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1988a |
The skeleton of Desmostylus from Utanobori, Hokkaido, I. Cranium.
Bull. Geol. Surv. Japan 39(3): 139-190. 6 tabs. 17 figs. 8 pls.
–In Japanese.
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Inuzuka, Norihisa
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1988b |
[Restoration of extinct mammals, desmostylians.]
Biomechanism 9: 7-19. 2 tabs. 19 figs.
–In Japanese.
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Inuzuka, Norihisa
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1988c |
[Re-examination of tooth identification of Desmostylus - type specimen of D. japonicus (Togari specimen).] 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: 107-122. 1 fig. March 1988.
–In Japanese.
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Inuzuka, Norihisa
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1988d |
[Body weight of Desmostylus.] 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: 123-124. March 1988.
–In Japanese.
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Inuzuka, Norihisa
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1988e |
What fossil burial posture speaks. The forefront excavation 9.
Anima 195: 106-109.
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Ijiri, Shoji; Inuzuka, Norihisa
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1989 |
[Extinct giant mammals in Japan.]
Tokyo, Tsukiji-Shokan Publ. Co., Ltd.: 1-242. Illus.
–In Japanese. Includes discussions of desmostylians, Dusisiren dewana, and Hydrodamalis.
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Kamei, Tadao; Kuga, Naoyuki; Inuzuka, Norihisa; Kamiya, Hidetoshi; Saegusa, Haruo
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1989 |
[Report of Paleoparadoxia fossils from Tsuyama.]
Ann. Rept. Tsuyama Mus. No. 1: [vii] + 48. 3 tabs. Frontisp. 25 figs. 7 pls.
–In Japanese. Comprises a preface by Kamei and chapters on the following topics: geology of the Tsuyama Basin (Kamei, pp. 1-9); fossils of Paleoparadoxia and their modes of occurrence (Kuga, pp. 10-23); reconstruction of Paleoparadoxia (Inuzuka, pp. 24-25); radiographic observations (Kuga, p. 26); tooth microstructure (Kamiya, p. 27); and discussion (Kamei, Saegusa, & Kuga, pp. 28-41). Pp. 42-48 reproduce news clippings about the Tsuyama specimen.
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Inuzuka, Norihisa
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1989a |
[III-2. Desmostylus and Behemotops. In: Report of research on the Ashoro marine mammal fauna.]
Ashoro (Japan), Ashoro Town Board of Education (201 pp.): 40-76. 1 tab. 52 figs. Mar. 31, 1989.
–In Japanese. An article entitled "Preparation and casting" by Kenichiro Eguchi in the same volume (pp. 121-153, 3 tabs., 53 figs.) describes the preparation and reproduction of the Behemotops bones.
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Inuzuka, Norihisa
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1989b |
Reconsideration of tooth class identification in Desmostylus, with special reference to the holotype of D. japonicus (Togari specimen).
Jour. Geol. Soc. Japan 95(1): 17-31. 1 tab. 14 figs. Jan. 1989.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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1989c |
[After the restoration of Desmostylus.]
Geological News No. 421: 1-4, 6-11. 6 figs. 8 pls. Sept. 1989.
–In Japanese.
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Inuzuka, Norihisa
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1989d |
[Reconstruction of Paleoparadoxia from Tsuyama.]
Bull. Tsuyama Local Mus. 1: 24-25.
–In Japanese.
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Kaneko, Kazuo; Inuzuka, Norihisa
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1992 |
Desmostylian fossils from the Yatsuo Group in Toyama Prefecture, central Japan and their paleoenvironments.
Earth Science (Chikyu Kagaku) 46(2): 153-164. 2 tabs. 8 figs. 1 pl. Mar. 1992.
–In Japanese; Engl. summ. Describes two isolated teeth of Early to Middle Miocene age: a lower P4 of Paleoparadoxia tabatai and an upper M2 of Desmostylus japonicus from Tsuzara and Minowa, respectively.
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Shimada, Kenshu; Inuzuka, Norihisa
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1994 |
Desmostylian tooth remains from the Miocene Tokigawa Group at Kuzubukuro, Saitama, Japan.
Trans. Proc. Pal. Soc. Japan, N.S., No. 175: 553-577. 4 tabs. 23 figs. Sept. 30, 1994.
–Japanese summ. Describes 15 isolated teeth of Paleoparadoxia and Desmostylus from the Godo Conglomerate Member, and discusses their taphonomic setting and associated shark fauna.
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Inuzuka, Norihisa
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1996 |
Body size and mass estimates of desmostylians (Mammalia).
Jour. Geol. Soc. Japan 102(9): 816-819. 1 tab. 4 figs. Sept. 1996.
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Inuzuka, Norihisa
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1997 |
Fossil footprints of desmostylians predicted from a restored skeleton.
Ichnos 5: 163-166. 2 tabs. 4 figs.
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Inuzuka, Norihisa; Kimura, Masaichi; Kohno, Naoki; Sawamura, Hiroshi (eds.)
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2000 |
Evolution of Desmostylia: incorporating the Proceeding[s] of the Desmostylian Symposium of the Fossil Research Society of Japan 16th Annual Meeting held at the Ashoro Museum of Paleontology, Hokkaido, Japan, 22-23 August 1998.
Bull. Ashoro Mus. Pal. No. 1: 1-172. Mar. 29, 2000.
–Includes a Preface by the editors (p. 7), and 12 papers, 11 of which are listed in this bibliography under their authors: Inuzuka (2), Ogasawara, Yahata & Kimura, Yahata, Igarashi et al., Taru, Kohno, Uno, Yamazaki & Umeda, and Yamazaki & Ikeuchi. Another paper, by Akihiko Suzuki (pp. 57-66), is on Miocene molluscan faunas and mentions desmostylians only in fig. 2.
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Inuzuka, Norihisa
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2000a |
Research trends and scope of the Order Desmostylia. In: Inuzuka et al. (eds.), Evolution of Desmostylia ... (q.v.).
Bull. Ashoro Mus. Pal. No. 1: 9-24. 11 tabs. 9 figs. Mar. 29, 2000.
–In Japanese; Engl. summ.
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Inuzuka, Norihisa
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2000b |
Primitive Late Oligocene desmostylians from Japan and phylogeny of the Desmostylia. In: Inuzuka et al. (eds.), Evolution of Desmostylia ... (q.v.).
Bull. Ashoro Mus. Pal. No. 1: 91-123. 6 tabs. 30 figs. Mar. 29, 2000.
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Inuzuka, Norihisa
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2000c |
Aquatic adaptations in desmostylians.
Historical Biol. 14(1-2): 97-113. 13 figs. 3 appendices. Jan. 2000.
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Inuzuka, Norihisa
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2000d |
Preliminary report on the evolution of aquatic adaptation in desmostylians (Mammalia, Tethytheria).
Oryctos 3: 71-77. 1 tab. 2 figs. Dec. 2000.
–French summ. This was a contribution to the conference on Secondary Adaptation to Life in Water II, Copenhagen, 1999.
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Inuzuka, Norihisa
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2000e |
Methods of phylogenetic reconstruction and comparative functional morphology.
Acta Anatomica Nipponica 75(2): 189-196. 1 tab. 8 figs. Apr. 2000.
–In Japanese; Engl. summ. Uses desmostylian teeth as examples to explain principles of systematics and cladistic analysis (191-194).
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Inuzuka, Norihisa
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2005 |
The Stanford skeleton of Paleoparadoxia (Mammalia: Desmostylia).
Bull. Ashoro Mus. Pal. No. 3: 3-110. 32 tabs. 110 figs. Mar. 2005.
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Inuzuka, Norihisa
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2006 |
Postcranial skeletons of Behemotops katsuiei (Mammalia: Desmostylia).
Bull. Ashoro Mus. Pal. No. 4: 3-66. 18 tabs. 51 figs.
–Japanese summ.
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Fujiwara, Shin-ichi; Kuwazuru, Osamu; Inuzuka, Norihisa; Yoshikawa, Nobuhiro
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2009 |
Relationship between scapular position and structural strength of rib cage in quadruped animals.
Jour. Morph. 270: 1084-1094. 1 tab. 5 figs.
–Concludes that the scapula of Paleoparadoxia media was oriented like that of other quadrupedal mammals, not in the position suggested by a "herpetiform" or sprawling reconstruction.
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Inuzuka, Norihisa
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2009 |
The skeleton of Desmostylus from Utanobori, Hokkaido, Japan, II. Postcranial skeleton.
Bull. Geol. Surv. Japan 60(5/6): 257-379. 20 tabs. 68 figs. 21 pls.
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Hayashi, Shoji; Houssaye, Alexandra; Nakajima, Yasuhisa; Chiba, Kentaro; Ando, Tatsuro; Sawamura, Hiroshi; Inuzuka, Norihisa; Kaneko, Naotomo; Osaki, Tomohiro
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2013 |
Bone inner structure suggests increasing aquatic adaptations in Desmostylia (Mammalia, Afrotheria).
PLoS ONE 8(4):e59146. 20 pp. 5 tabs. 13 figs. + Supplementary Information. DOI:10.1371/journal.pone.0059146 Apr. 2, 2013.
–ABSTRACT: BACKGROUND: The paleoecology of desmostylians has been discussed controversially with a general consensus that desmostylians were aquatic or semi-aquatic to some extent. Bone microanatomy can be used as a powerful tool to infer habitat preference of extinct animals. However, bone microanatomical studies of desmostylians are extremely scarce. METHODOLOGY/PRINCIPAL FINDINGS: We analyzed the histology and microanatomy of several desmostylians using thin-sections and CT scans of ribs, humeri, femora and vertebrae. Comparisons with extant mammals allowed us to better understand the mode of life and evolutionary history of these taxa. Desmostylian ribs and long bones generally lack a medullary cavity. This trait has been interpreted as an aquatic adaptation among amniotes. Behemotops and Paleoparadoxia show osteosclerosis (i.e. increase in bone compactness), and Ashoroa pachyosteosclerosis (i.e. combined increase in bone volume and compactness). Conversely, Desmostylus differs from these desmostylians in displaying an osteoporotic-like pattern. CONCLUSIONS/SIGNIFICANCE: In living taxa, bone mass increase provides hydrostatic buoyancy and body trim control suitable for poorly efficient swimmers, while wholly spongy bones are associated with hydrodynamic buoyancy control in active swimmers. Our study suggests that all desmostylians had achieved an essentially, if not exclusively, aquatic lifestyle. Behemotops, Paleoparadoxia and Ashoroa are interpreted as shallow water swimmers, either hovering slowly at a preferred depth, or walking on the bottom, and Desmostylus as a more active swimmer with a peculiar habitat and feeding strategy within Desmostylia. Therefore, desmostylians are, with cetaceans, the second mammal group showing a shift from bone mass increase to a spongy inner organization of bones in their evolutionary history.
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Inuzuka, Norihisa
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2013 |
Reconstruction and life restoration of Desmostylus and Paleoparadoxia.
Jour. Fossil Research 45(2): 31-43. 3 tabs. 9 figs. Feb. 2013.
–In Japanese; Engl. summ. Summarizes osteological differences between the two genera and discusses their paleoecology.
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