Melanognathus

{{Short description|Extinct genus of fishes}}

{{Automatic taxobox

| fossil_range = Devonian

| taxon = Melanognathus

| authority = Jarvik, 1967

| type_species = †Melanognathus canadensis

| type_species_authority = Jarvik, 1967

}}

Melanognathus (Greek for "black jaw") is a genus of prehistoric lungfish which lived during the Devonian period.SCHULTZE H.P. (2001). MELANOGNATHUS, A PRIMITIVE DIPNOAN FROM THE LOWER DEVONIAN OF THE CANADIAN ARCTIC AND THE INTERRELATIONSHIPS OF DEVONIAN DIPNOANS. Journal of Vertebrate Paleontology: Vol. 21, No. 4 pp. 781–794