Two fused pairs of conodonts, one pair of Ozarkodina and one of Spathognathodus, are described from the Kokomo Limestone, Silurian, near Logansport, Ind.; both age and lithology of the strata are unusual for occurrence of assemblages. Each pair of overlapping right and left individuals is fused by material of the same composition as the conodonts. The pairs seem to be closely analogous to touching or overlapping (but not fused) pairs in the assemblage genera Westfalicus and Scottognathus from Carboniferous black shales. Fusion, if it occurred during the life of the animal, was probably not normal, as only one other fused pair has been found.

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