After Sansom & Smith, 2005

Drepanoistodus Lindström, 1971

        †Drepanoistodus forceps (Lindström, 1955)
            †Oistodus forceps Lindström, 1955

        †Drepanoistodus suberectus (Branson & Mehl, 1933b)
            †Oistodus suberectus Branson & Mehl, 1933b
            †Drepanoistodus suberectus (Branson & Mehl); McCracken & Barnes, 1981
            †Drepanoistodus suberectus (Branson & Mehl); Sweet, 1982
            †Drepanoistodus suberectus (Branson & Mehl); Nowlan et al., 1988
            †Drepanoistodus suberectus (Branson & Mehl); Armstrong, 1990
            †Drepanoistodus suberectus (Branson & Mehl); Leslie, 2000
            †Drepanoistodus suberectus (Branson & Mehl); Sansom & Smith, 2005

        †Drepanoistodus pitjantiDrepanoistodus tablepointensisDrepanoistodus bellburnensis

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