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†Pteraspidiformes (Order) ..†Anchipteraspididae (Family) ..†Protaspididae (Family) ..†Protopteraspididae (Family) ..†Psammosteidae (Family) ..†Pteropsis (Genus) ..†Pteraspididae (Family) ....†Doryaspis (Genus) ....†Errivaspis (Genus) ....†Pteraspis (Genus) ....†Rhinopteraspis (Genus) ....†Unarkaspis (Genus)

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Last updated: 1 Feb 2024