Cymatochiton is an extinct genus of polyplacophoran molluscs. Cymatochiton became extinct during the Permian period.

Species: Chiton loftusianus (King, 1848) = Cymatochiton loftusianus (King, 1848) Rhynchoteuthis kaibabensis (Brady, 1955) = 6Cymatochiton kaibabensis (Brady, 1955)

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