ovenii, Halosaurus Johnson [J. Y.] 1864:406, Pl. 26 (fig. 1 [not 2]) [Proceedings of the Zoological Society of London 1863 (pt 3) (art. 8) (for 10 Nov. 1863); ref. 5751] Madeira, eastern Atlantic. Holotype (unique): BMNH 1863.12.12.1. Spelled owenii by authors. •Valid as Halosaurus ovenii Johnson 1864 -- (McDowell 1973:57 [ref. 24539], Harrisson 1973:254 [ref. 7189], Sulak in Whitehead et al. 1986:5973 [ref. 13676], Sulak 1986:197 [ref. 5720], Sulak 1990:131 [ref. 19326], Cervigón 1996:154 [ref. 24489], Santos et al. 1997:18 [ref. 23531], McEachran & Fechhelm 1998:215 [ref. 23897], Randall & Lim in Randall & Lim 2000:584 [ref. 25122], Ben-Tuvia et al. 2001:1285 [ref. 41445] as Holosaurus ovenii, Hutchins 2001:18 [ref. 25847], Ben-Tuvia et al. 2003:282 [ref. 41557] as Holosaurus ovenii, Smith 2003:686 [ref. 26989], Paxton et al. 2006:230 [ref. 28995], Pais et al. 2009:33 [ref. 30210], Bañon et al. 2010:6 [ref. 31029], Zenetos et al. 2010:412 [ref. 31201], Bañón et al. 2016:303 [ref. 34397], Smith 2016:1600 [ref. 34556], Fricke et al. 2018:30 [ref. 35805], Carneiro et al. 2019:57 [ref. 37250], Robertson et al. 2020:156 [ref. 38098], Bañón & Maño 2021:48 [ref. 38883], Kovačić et al. 2021:18 [ref. 39014], Fermon et al. 2022:112 [ref. 39448], Insacco et al. 2022:274 [ref. 39896], Page et al. 2023:50 [ref. 40505], Fricke et al. 2024:111 [ref. 41622]). Current status: Valid as Halosaurus ovenii Johnson 1864. Halosauridae. Distribution: Circumglobal (including Caribbean Sea and western Mediterranean Sea). Habitat: marine.