1. Bateson, W. 1886. The ancestry of the Chordata. Quarterly Journal of Microscopical Science 26: 535–571.
2. Bonte, A., and J. Ricour. 1948. Contribution à la stratigraphie du Givétien. Annales de la Société géologique du Nord 68: 25–36.
3. Branson, E.B., and M.G. Mehl. 1938. The conodont genus Icriodus and its stratigraphic distribution. Journal of Paleontology 12 (2): 156–166.
4. Bultynck, P. 1972. Middle Devonian Icriodus assemblages (Conodonta). Geologica et Palaeontologica 6: 71–86.
5. Bultynck, P. 2003. Devonian Icriodontidae: biostratigraphy, classification and remarks on paleoecology and dispersal. Revista Española de Micropaleontología 35: 295–314.