English: Schematic showing the relationship between the different subgenera of Peronopsis (light green), other Peronopsid genera (darker green), the ancestrial genus Tannudiscus of the eodiscoid family Weymouthiidae (orange), and decending agnostoid family (other colors). Unclear is the position of ?Peronopsis palmadon, a transitional form between the agnostoids and the cyclopygoids. Based on E. B. Naimark (2012). Hundred species of the genus Peronopsis Hawle et Corda, 1847. Paleontological Journal 46(9):945-1057
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