Distomodus, Branson and Branson, 1947

Waid, Christopher B. T. & Cramer, Bradley D., 2017, Telychian (Llandovery, Silurian) conodonts from the LaPorte City Formation of eastern Iowa, USA (East-Central Iowa Basin) and their implications for global Telychian conodont biostratigraphic correlation, Palaeontologia Electronica 42 (6), pp. 1-37 : 21

Genus DISTOMODUS Branson and Branson, 1947

Type species. Distomodus kentuckyensis Branson and Branson, 1947 .

Diagnosis. Apparatus consists of Sa, Sb, Sc, M, Pb, and Pa elements. Pa elements are diagnostic, and consist of a broad platform composed of four to six nodose, to slightly ridged, processes. Basal cavities are highly excavated. S elements of the genus are also distinctive. They can be very robust, have cusps with longitudinal ridges along the sides, and have a very highly excavated basal cavity that is triangular in cross section. See Wang and Aldridge (2010) for thorough diagnosis.