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†Rhynchosauridae (Family) ..[†Cephalastron] (Genus) ..[†Cephalastronius] (Genus) ..[†Cephalonia] (Genus) ..†Fodonyx (Genus) ..†Langeronyx (Genus) ..†Otischalkia (Genus) ..†Rhynchosaurinae (Subfamily) ..[†Scaphonychimus] (Genus) ..[†Scaphonyx] (Genus) ..†Stenaulorhynchinae (Subfamily) ..[†Stenometopon] (Genus) ..[†Howesiinae] (Subfamily)

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Last updated: 28 Aug 2026