Classification of the genus Ptychoglyptus
G. †Ptychoglyptus Willard 1928
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†Ptychoglyptus alaensis Rasmussen et al. 2012
†Ptychoglyptus bellarugosus Schuchert and Cooper 1930
†Ptychoglyptus ingenuus Cocks 2005
†Ptychoglyptus irregularis Reed 1940
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Invalid names: Ptychoglyptus valdari Spjeldnaes 1957 [synonym]
†Ptychoglyptus pauciradiatus Reed 1932
†Ptychoglyptus virginensis Willard 1928
†Ptychoglyptus virginiensis Willard 1928
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Invalid names: Ptychoglyptus pulchrus Butts 1926 [synonym]