Classification of the subfamily Discocystinae

Subfm. †Discocystinae Sumrall 1996
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Bostryclavus sampsoni Sumrall 1996
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Clavidiscus laudoni Bassler 1936
G. †Discocystis Gregory 1897
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Hypsiclavus guensburgi Sumrall 1996
Hypsiclavus kinsleyi Sumrall 1996
Hypsiclavus priesti Sumrall 1996
G. †Lispidecodus Kesling 1967
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Lispidecodus plinthotus Kesling 1967
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Spiraclavus nacoensis Sumrall 1992