Cyrtolitidae is an extinct family of monoplacophorans in the order Cyrtonellida.
Genera Cloudia Cyclocyrtonella Cyrtolites Cyrtonellopsis Kolihadiscus Neocyrtolites Paracyrtolites Quasisinuites Sinuella Sinuitopsina Sinuitopsis Telamocornu Yochelsonellis
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