Classification of Kues 1984
G. †Orthonychia Hall 1843
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†Platyceras (Orthonychia) parva Shumard and Swallow 1858
G. †Meekospira Ulrich and Scofield 1897
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†Meekospira peracuta Meek and Worthen 1860
Subg. †Pseudozygopleura (Stephanozyga) Knight 1930
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†Pseudozygopleura (Stephanozyga) subnodosa Knight 1930
Subg. †Knightites (Cymatospira) Knight 1942
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†Knightites (Cymatospira) montfortianus Norwood and Pratten 1855
Subg. †Straparollus (Euomphalus) Sowerby 1814
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†Straparollus (Euomphalus) plummeri Knight 1934
Subg. †Straparollus (Amphiscapha) Knight 1942
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†Straparollus (Amphiscapha) catilloides Conrad 1842
Subg. †Bellerophon (Bellerophon) de Montfort 1808
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†Bellerophon (Bellerophon) crassus Meek and Worthen 1860
†Bellerophon (Bellerophon) planodorsatus Hoare 1961
Subg. †Glabrocingulum (Glabrocingulum) Thomas 1940
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†Glabrocingulum (Glabrocingulum) grayvillense Norwood and Pratten 1855
Subg. †Glyptotomaria (Dictyotomaria) Knight 1945
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†Glyptotomaria (Dictyotomaria) quadrilineata Girty 1934