Agassiz, J. L. R. 1850. [Untitled. Genus Tomognathus, new, Agassiz.]. P. 376 in: Dixon, F. 1850. The geology and fossils of the Tertiary and Cretaceous formation of Sussex. London: Longman, Brown, Green, and Longmans, xvi + 422 pp.

Notes: Publication date from Sherborn (1908).