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K

Kaupitherium bronni (Krauss, 1858) Voss & Hampe, 2017 ( 1 )
  *2021Domning, D. P. (syn. of Halitherium bronni)
Kaupitherium gruelli Voss & Hampe, 2017 ( 1 )
  *2021Domning, D.P. (syn. of Halitherium schinzii)
Kaupitherium Voss & Hampe, 2017 ( 2 )
   2019Gol'din et al. (comp. w/Dugongidae indet.; early Olig., Ukraine)
  *2021Domning, D.P. (syn. of Halitherium)
Kotadasiren gracillis Das & Basu, 1994 ( 2 )
x *1994Das & Basu (n.gen.n.sp.; nomen nudum; Oligo-Mioc., India; 5.)
   2010Bajpai et al. (nomen nudum; syn. of Kutchisiren cylindrica, n.gen.n.sp.)
Kronokotherium brevimaxillare Pronina, 1957 ( 4 )
 D*1957Pronina, I.G. (n.gen.n.sp.)
 D 1966cShikama, T.
xD*1971Dubrovo & Sinel'nikova (synonymized with Desmostylus hesperus; 670.)
xD 1982Reinhart, R.H. (?syn. of Desmostylus hesperus japonicus; 551, 553.)
Kronokotherium Pronina, 1957 ( 8 )
 D*1957Pronina, I.G. (n.gen.)
xD 1963Mitchell & Repenning (syn. of Desmostylus; m4, m10.)
 D 1966cShikama, T.
xD*1971Dubrovo & Sinel'nikova (syn. of Desmostylus; 670.)
xD 1982Kleinschmidt, A. ("Kronotherium"; m378-379.)
xD 1982Reinhart, R.H. (syn. of Desmostylus; 551, 553.)
xD 1991Clark, J.M. (syn. of Desmostylus; m493.)
 D 2009Jacobs et al.
Kutchisiren Bajpai, Domning, Das, Vélez-Juarbe, & Mishra, 2010 ( 1 )
  *2010Bajpai et al. (n.gen.; Early Mioc., India)
Kutchisiren cylindrica Bajpai, Domning, Das, Vélez-Juarbe, & Mishra, 2010 ( 2 )
  *2010Bajpai et al. (n.sp.; Early Mioc., India)
   2012Vélez-Juarbe et al.