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Platyosphys
''Platyosphys'' is a genus of basilosaurine basilosaurid from Middle Eocene (Bartonian) of the eastern United States, Western Sahara, and Ukraine. ==Taxonomy== The type species, ''Platyosphys paulsoni'', was originally described as ''Zeuglodon paulsoni'' in 1873 on the basis of several vertebrae from a Bartonian-age horizon in southern Ukraine.〔J. F. Brandt. 1873. Uber bisher in Russland gefundene Reste von Zeuglodonten. Melanges biologiques Bulletin de l'Academie imperials des Sciences de St. Petersbourg 9:111-112〕 In his 1936 monograph regarding Archaeoceti, Remington Kellogg recognized the distinct nature of the taxon and coined the new genus ''Platyosphys'' for ''Z. paulsoni''.〔R. Kellogg. 1936. A Review of the Archaeoceti. Carnegie Institution of Washington 482:1-366〕 Another new species of ''Platyosphys'', ''P. einori'', was coined for vertebrae, a scapula, and rib fragments in 2001.〔V. Gritsenko. 2001. New species Platiosphys () einori (Archaeoceti) from Oligocenic deposits of Kyiv. Visnyk Heolohila Kyivskyi Natsionalyi Universytet Imeni Tarasa Shevchenka 20:17-20〕 In the original description of ''Basilotritus'', ''Platyosphys'' and its constituent species wee considered ''nomina dubia'' because their material was considered insufficiently diagnostic to generic or specific level.〔Pavel Gol'din and Evgenij Zvonok (2013). "Basilotritus uheni, a New Cetacean (Cetacea, Basilosauridae) from the Late Middle Eocene of Eastern Europe". Journal of Paleontology 87 (2): 254–268. doi:10.1666/12-080R.1.〕 However, a 2015 paper describing archaeocetes from the Western Sahara described a new species, ''P. aithai'', and reiterated the diagnostic nature of the type species of ''Platyosphys'', suggesting that ''Basilotritus'' might be a synonym of ''Platyosphys''.〔Philip D. Gingerich and Samir Zouhri (2015). "New fauna of archaeocete whales (Mammalia, Cetacea) from the Bartonian middle Eocene of southern Morocco". Journal of African Earth Sciences 111: 273–286. doi:10.1016/j.jafrearsci.2015.08.006.〕
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