(en)Branson E.B.,Mehl M.G., 1931. Fishes of the Jefferson Formation of Utah. The Journal of Geology, Vol. 39, No. 6 (Aug. - Sep., 1931), pages 509-531.
(en)Branson E.B.,Mehl M.G., 1941. New and Little Known Carboniferous Conodont Genera. Journal of Paleontology, Vol. 15, No. 2 (Mar., 1941), pages 97-106.