| Japan ( 165 ) |
| (SEE ALSO: Sakhalin) |
| | | | 1881 | Matsubara, S. (DD) |
| x | D | | 1902a | Osborn, H.F. (Desmostylus; discussion of original Japanese discovery; 713-714.) |
| x | D | * | 1902 | Yoshiwara & Iwasaki (Desmostylus; Togari; 1-2.) |
| x | D | | 1911 | Merriam, J.C. (Desmostylus; 406.) |
| x | | | 1932 | Hirasaka, K. (DD; 3.) |
| | | | 1933 | Oshima, H. (DD; Yaeyama & Miyako Islands; hunting) |
| x | | | 1934 | Hirasaka, K. (DD; 4221.) |
| x | D | * | 1937b | Nagao, T. (Desmostylella typica, n.gen.n.sp.; Mioc., Honshu; 82-85.) |
| x | D | | 1937c | Nagao, T. (Desmostylus cf. minor; Hokkaido; 110-113.) |
| | D | | 1939b | Tokunaga, S. (historical note on identification of Togari Desmostylus skull; iii-v.) |
| | D | | 1944 | Naora, N. |
| x | D | | 1951 | DEREC ("Desmostylus" [actually Paleoparadoxia]; Izumi; discovery & collection; 414.) |
| x | D | | 1952 | DEREC (Desmostylus, Togari; Paleoparadoxia, Izumi; re-collection & stratigraphy of localities; 144.) |
| | D | | 1953 | Arai, J. |
| x | D | | 1963 | Mitchell & Repenning (desmostylians; chronologic & geographic range; 3-5, 10-12, 15-16.) |
| | D | * | 1966a | Shikama, T. |
| | D | * | 1966c | Shikama, T. |
| x | | | 1970 | Shikama & Domning (Hydrodamalis sp.; Late Plioc., Honshu; 390-394.) |
| | | | 1971 | Ohama, N. (DD; Yaeyama Islands; hunting with nets) |
| x | D | * | 1972 | Ikebe et al. (desmostylians; stratigraphic range; 44-45, 47-48, 65-66.) |
| | D | | 1973 | Akiyama & Kumano |
| x | D | | 1973 | Shikama et al. (sirs. & desmostylians; stratigraphic range; 138, 140-141.) |
| | D | | 1974 | Kozawa, Y. |
| | D | | 1975 | Kamei & Okazaki |
| | | | 1976 | Hojo, T. (DD; Okinawa; archeological site) |
| | D | | 1977 | Inuzuka et al. |
| | D | | 1977 | Inuzuka, N. |
| x | D | | 1977 | Kamei & Okazaki (Desmostylus, Paleoparadoxia; stratigraphic range Middle-Late Mioc.; 354.) |
| | D | | 1977 | Kimura, M. |
| | D | | 1977a | Okazaki, Y. |
| | D | | 1977b | Okazaki, Y. |
| | D | | 1977 | Sato & Ijiri (Paleoparadoxia tabatai) |
| | D | | 1978 | Yamaguchi, S. (Desmostylus; Hokkaido) |
| | D | | 1978 | Fujimoto & Sakamoto (Paleoparadoxia) |
| | D | | 1978 | Hasegawa, Y. |
| | D | | 1978 | Itoigawa & Nakamura |
| | D | | 1978 | Kimura, Akiyama, & Kumano |
| | D | | 1978 | Kimura, M. |
| | D | | 1978 | Tsunoda et al. (Paleoparadoxia tabatai; Mioc.) |
| x | | | 1979 | Kamiya et al. (DD; Okinawa; organ weights; 129-131.) |
| | D | | 1979 | Kimura & Takaku |
| x | | | 1979 | Takahashi et al. (Dusisiren n.sp.; Late Mioc., Yamagata; 228.) |
| x | | | 1980 | Blair, D. (DD; Okinawa; trematode Indosolenorchis hirudinaceus; 512-513.) |
| | D | | 1980 | Inuzuka & Murai (Paleoparadoxia) |
| x | D | | 1980 | Inuzuka et al. (supposed Dugong [actually desmostylian?]; Middle Mioc., Hokkaido; 639-641.) |
| x | | | 1981a | Blair, D. (DD; Okinawa; parasitic flukes; 15, 36, 39.) |
| | D | | 1981 | Kimura, M. (Hokkaido) |
| | D | | 1981 | Shibata et al. |
| | | | 1981 | Takahashi, S. (Dusisiren n.sp.) |
| | D | | 1981 | Yamaguchi et al. |
| | D | | 1982 | Abe et al. (Desmostylus; Mioc., Shimane) |
| x | | | 1982 | Aizu Fossil Research Group (Dusisiren cf. jordani; Late Mioc., Fukushima; 282-284.) |
| | | | 1982 | Furusawa & Kimura |
| | | | 1982 | Hasegawa & Nohara (DD) |
| | D | | 1982a | Kimura, M. (Desmostylus) |
| | | | 1982b | Kimura, M. |
| x | | | 1983 | Kimura et al. (Hydrodamalis; Pleist., Hokkaido; 162-177, pls. 1-4.) |
| | D | | 1983 | Sakamoto, O. |
| x | | * | 1983 | Takahashi et al. (Dusisiren n.sp.; Late Mioc., Yamagata; report on excavation; 1-76.) |
| | | * | 1984 | Okazaki, Y. (Dugongid(?) caudal vertebrae from the Late Oligocene Honjo Formation, Ashiya Group, Fukuoka, Japan.) |
| | D | | 1984 | Akamatsu, M. |
| | D | | 1984 | Chinzei, K. |
| | | | 1984 | Furusawa, H. |
| | D | | 1984 | Goto & Kuga |
| | D | | 1984 | Itoigawa, J. |
| | D | | 1984 | Kamei, T. |
| | D | | 1984 | Kaseno, Y. |
| | D | | 1984 | Oishi & Kawakami |
| | D | | 1984 | Taguchi, E. |
| | D | | 1984 | Takayasu & Nakamura |
| | | * | 1984 | Takikawa Investigation Group |
| | D | | 1984 | Yamanoi, T. |
| | D | | 1984 | Yoshida, K. |
| | D | | 1985 | Inuzuka et al. (Desmostylus; metatarsus) |
| | | | 1985 | Shinohara et al. (HG; Pleist., Hokkaido) |
| | D | | 1986 | Hasegawa, Y. (Paleoparadoxia; Yanagawa) |
| | D | | 1986 | Inuzuka & Karasawa (Paleoparadoxia) |
| | D | | 1986a | Suzuki et al. (Paleoparadoxia) |
| | D | | 1986b | Suzuki et al. (Paleoparadoxia) |
| x | | * | 1986 | Takahashi et al. (Dusisiren dewana, n.sp., Late Mioc., Yamagata, 296-300; other sirs., 317-318.) |
| | | | 1987 | Furusawa, H. |
| | D | | 1987 | Hasegawa & Tanaka |
| | D | | 1987 | Horikawa et al. |
| | D | | 1987a | Inuzuka, N. |
| | D | | 1987 | Kamiya, H. |
| | D | | 1987 | Kohno, N. |
| | | | 1987 | Koizumi, A. |
| | D | | 1987 | Kokufuda, Y. |
| | D | | 1987 | Kuga et al. |
| | D | | 1987 | Ogasawara & Morita (Paleoparadoxia; paleoecology) |
| | D | | 1987 | Oishi, M. |
| | | | 1987 | Okazaki, Y. |
| | D | | 1987 | Sakamoto, O. |
| | D | | 1987 | Takeyama & Azuma |
| | D | | 1988 | Hasegawa et al. |
| x | | | 1988 | Hasegawa, H. (DD; Okinawa; nematode Paradujardinia halicoris; 23-25.) |
| | D | | 1988 | Hasegawa, Y. |
| | D | | 1988c | Inuzuka, N. |
| | D | | 1988d | Inuzuka, N. |
| | D | | 1988a | Kamiya, H. |
| | | | 1988 | Kobayashi & Aizu Fossil Res. Group |
| | D | | 1988 | Kobayashi et al. |
| | D | | 1988 | Kohno & Hasegawa |
| | D | | 1988 | Kozawa et al. |
| | D | | 1988 | Matsuuda, N. |
| | | | 1988 | Miyazaki et al. |
| | | | 1988 | Oishi, M. |
| x | D | | 1988 | Saito et al. (Behemotops sp.; Late Olig., Hokkaido; age; 269-273.) |
| | D | | 1988 | Sakamoto, O. |
| | D | | 1988 | Takeyama & Azuma |
| | D | | 1989a | Inuzuka, N. (Behemotops; Hokkaido) |
| | D | | 1989 | Kamei et al. (Paleoparadoxia; Tsuyama) |
| | | | 1989b | Kamiya, T. |
| | D | | 1989 | Satoh et al. |
| | | | 1990 | Furusawa et al. (Hydrodamalis spissa) |
| x | D | | 1990 | Ogasawara & Morita (Paleoparadoxia; paleoecology; 29-30.) |
| | D | | 1990 | Oishi et al. (Desmostylus; Kintaichi) |
| | D | | 1992 | Kaneko & Goto (Paleoparadoxia tabatai; Toyama Prefecture) |
| | D | | 1992 | Kaneko & Inuzuka (Paleoparadoxia tabatai, Desmostylus japonicus; Toyama Prefecture) |
| | | | 1992 | Kohno & Takaizumi (Halitheriinae indet.; Late Mioc., Sendai Prefecture) |
| | | * | 1992 | Pirika Sirenia Research Group (Hydrodamalis sp.; Pleist., Hokkaido) |
| | D | | 1992 | Satoh et al. (Desmostylus japonicus molar; Ibaraki City, Japan) |
| | D | | 1993 | Hasegawa et al. (Paleoparadoxia; Yanagawa) |
| | | | 1993 | Kobayashi et al. (Annaka) |
| | | | 1994 | Furusawa & Kohno (HG; Middle Pleist.) |
| | D | | 1994 | Hasegawa & Taketani (Paleoparadoxia tabatai; Yanagawa) |
| | | | 1994 | Nishinakagawa et al. (dugongid; at archeological site) |
| x | D | | 1994 | Shimada & Inuzuka (Paleoparadoxia, Desmostylus; Mioc., Saitama Prefecture; 553-577.) |
| | | | 1994 | Uchida, S. (DD) |
| | | | 1995 | Furusawa & Kimura (Hydrodamalis spissa, Early Plioc.; Hydrodamalis sp., Early Pleist.; Hokkaido) |
| | D | | 1995 | Hasegawa et al. (Desmostylus; Middle Mioc., Nagano Prefecture) |
| | | | 1995 | Kimura et al. (Late Mioc., Hokkaido) |
| | | * | 1995 | Kobayashi et al. (Dusisiren takasatensis, n.sp.; Late Mioc.) |
| | D | | 1997 | Hasegawa, Y. (fossil sirs. & desmostylians) |
| | | | 1998 | Kobayashi, S. (Hydrodamalinae) |
| | | | 1998 | Nagasawa & Kobayashi (Hydrodamalis sp.; Plioc.; Yamagata Prefecture) |
| | D | | 1998 | Kimura et al. (Desmostylus, Paleoparadoxia; Mioc.; Akan-cho, Hokkaido, Japan) |
| | | | 1999 | Taru & Matsushima (Nojima Formation, Kanagawa Prefecture) |
| | D | | 2000 | Taketani, Y. |
| | D | | 2000 | Takaizumi & Sato (Paleoparadoxia; Mioc.) |
| | D | | 2000 | Hasegawa et al. (Niwaya Fm.) |
| | | | 2002 | Kobayashi, S. (indeterminate halitheriine; Mioc.) |
| | D | | 2002 | Yoshida & Kimura (Desmostylus hesperus, Paleoparadoxia tabatai; Mioc., Akan, Hokkaido) |
| | D | | 2002 | Watanabe & Kimura (Desmostylus hesperus, Paleoparadoxia tabatai; Mioc., Akan, Hokkaido) |
| | D | | 2002 | Kimura, M. (Desmostylus hesperus, Paleoparadoxia tabatai; Mioc., Akan, Hokkaido) |
| | D | | 2002 | Sato & Kimura (Desmostylus hesperus, Paleoparadoxia tabatai; Mioc., Akan, Hokkaido) |
| | | | 2002 | Kobayashi, S. (Annaka) |
| x | | | 2003 | Sadler, R. (DD; Okinawa; threat from airbase construction; 24.) |
| | | | 2004 | Uno & Kimura (Desmostylus hesperus; Middle Mioc., Utanobori, Hokkaido) |
| | | | 2004 | Yamamuro et al. (DD; Kyushu; stable isotopes of tissues and gut contents) |
| | D | | 2006 | Inuzuka et al. ("Paleoparadoxia tabatai"; Mioc., Akita Prefecture) |
| | D | | 2006 | Hasegawa et al. (Paleoparadoxia sp.; Middle Mioc., Gunma; forelimb) |
| | | * | 2007 | Shirakihara et al. (DD; southern Japan; distribution & conservation) |
| | | | 2007 | Kohno et al. (Hydrodamalis sp.; Lower Pleist.; Tokyo, Japan) |
| | | | 2007 | Tomida & Ohta (Desmostylus sp.; Hokkaido; Middle Mioc.) |
| | | | 2008 | Myoken Research Group (Hydrodamalis sp.; Late Plioc.; Nagaoka) |
| | D | | 2008 | Hasegawa & Kimura (Paleoparadoxia sp., Kurosawa & Nakajima specimens; Middle Mioc., Gunma) |
| | D | | 2008 | Shimaguchi, T. (Aomori Prefecture; Middle Mioc.) |
| | D | | 2009 | Inuzuka et al. (?desmostylian footprints; Lower Mioc.) |
| | D | | 2009 | Sakurai, K. (Desmostylus japonicus; Hokkaido; Mioc.) |
| | | * | 2012 | Ikeda & Mukai (DD; distribution, status, & conservation) |
| | D | | 2014 | Hasegawa et al. (Paleoparadoxia sp.; Early Mioc., Hokkaido) |
| | D | * | 2015 | Chiba et al. (cf. Vanderhoofius sp., Middle Mioc., Hokkaido) |
| | D | | 2015 | Matsui & Kawabe (Paleoparadoxia sp.; early Mioc., Chikubetsu, Hokkaido) |
| | D | | 2018 | Matsui et al. (Paleoparadoxia femur; Mioc., Fukushima) |