After Milner, 2004

    †Pleurosternon Owen, 1853
        †Digerrhum Cope, 1870
        †Pleurosternum Lydekker, 1889b
        †Megasernon
        †Megasternum
        †Mesochelys Evans & Kemp, 1975
        †Pleurosternon Owen; Milner, 2004

        †Pleurosternon bullockii (Owen, 1842)
            †Platemys bullockii Owen, 1842
            †Platemys bullockii Owen; Owen, 1850
            †Pleurosternon concinnum Owen, 1853
            †Pleurosternon emarginatum Owen, 1853 (in partim)
            †Pleurosternon ovatum Owen, 1853
            †Pleurosternon sedgwicki Seeley, 1869
            †Pleurosternon vansittarti seeley, 1869
            †Pleurosternon oweni Seeley, 1869
            †Platemys concinna (Owen); Maack, 1869
            †Platemys ovata (Owen); Maack, 1869
            †Digerrhum bullocki (Owen) Cope, 1870
            †Pleurosternon bullocki (Owen); Lydekker & Boulenger, 1887
            †Pleurosternon bullocki (Owen); Lydekker, 1889a
            †Pleurosternum bullocki (Owen); Lydekker, 1889b (lapsus calami?)
            †Glyptops ruetimeyeri (Lydekker, 1889b); Watson, 1910a (in partim) (non Lydekker, 1889b)
            †Pleurosternum bullocki (Owen); Delair, 1958
            †Hylaeochelys sp. Delair, 1958 (non Lydekker, 1889b)
            †Pleurosternon bullocki (Owen); Delair, 1966
            †Mesochelys durlstonensis Evans & Kemp, 1975
            †Mesochelys durlstonensis Evans & Kemp; Gaffney, 1979
            †Pleurosternon Owen; Gaffney & Meylan, 1988
            †Pleurosternon bullocki (Owen); de Lappatern de Broin & Murelaga, 1999
            †Pleurosternon bullocki (Owen); Milner, 2004

         †Pleurosternon portlandicum

Reference(s):