Cryptotaxis
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Cryptotaxis is an extinct genus of conodonts in the family Cryptotaxidae from the Famennian (Upper Devonian).
- "Multielement Conodont Species from the Louisiana Limestone (Upper Devonian) of West-Central Illinois and Northeastern Missouri, U.S.A.", Karl M. Chauffe and Patricia A. Nichols, Micropaleontology, Vol. 41, No. 2 (Summer, 1995), pages 171–186, doi:.