Stephenson, M. B. (1943). Haplocytheridea bassleri Stephenson, new name for Cytheridea subovata Ulrich & Bassler. Journal of Paleontology. 17 (2): 206.
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Stephenson, M. B.
1943
<em>Haplocytheridea bassleri</em> Stephenson, new name for <em>Cytheridea subovata</em> Ulrich & Bassler