Taxonomic history of the genus †Letognathus

After Brazeau, 2005

    †Letognathus Brazeau, 2005

         †Letognathus hardingi (Dawson, 1868)
            †Rhizodus hardingi Dawson, 1868
            †Strepsodus hardingi (Dawson); Woodward, 1890
            †Strepsodus hardingi (Dawson); Woodward, 1891
            †Strepsodus hardingi (Dawson); Andrews, 1985
            †Letognathus hardingi (Dawson); Brazeau, 2005

Reference(s):

Brazeau, M. D., 2005: A new genus of rhizodontid (Sarcopterygii, Tetrapodomorpha) from the Lower Carboniferous Horton Bluff Formation of Nova Scotia, and the evolution of the lower jaws in this group.
–Canadian Journal of Earth Sciencies: Vol. 42, #8, pp. 1481-1499