Cyrtonellida is a group of "monoplacophora", representing either a sister taxon to, or a polyphyletic assemblage including, the Trybliida.

Subtaxa Carcassonnellidae Cyrtolitidae Cyrtonelloidea Pollicinidae

Genera Aremellia Hamusella Tetamocornu Yangtzeconus Yochelsonia

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