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[†Ptychopariida] (Order) ..†Altitudella (Genus) ..†Amphorella (Genus) ..†Angelina (Genus) ..†Antagmus (Genus) ..†Atops (Genus) ..†Bicella (Genus) ..†Binodaspis (Genus) ..†Calculites (Genus) ..†Chondrastaulina (Genus) ..†Crassifimbra (Genus) ..†Eoptychoparia (Genus) ..†Kingaspidoides (Genus) ..†Kolbinella (Genus) ..†Luxella (Genus) ..†Miranda (Genus) ..[†Olenina] (Suborder) ..†Oncchocephalus (Genus) ..†Ptychopariina (Suborder) ..†Regina (Genus) ..†Stella (Genus) ..[†Trinucleina] (Suborder) ..[†Asaphina] (Suborder) ....†Megistaspidella (Genus)

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Last updated: 21 Sep 2025