''Melanognathus'' (Greek for "black jaw") is a genus of

prehistoric Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of ...

lungfish Lungfish are freshwater vertebrates belonging to the order Dipnoi. Lungfish are best known for retaining ancestral characteristics within the Osteichthyes, including the ability to breathe air, and ancestral structures within Sarcopterygii, i ...

which lived during the

Devonian The Devonian ( ) is a geologic period and system of the Paleozoic era, spanning 60.3 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya. It is named after Devon, England, whe ...

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

References

Prehistoric lungfish genera Devonian bony fish Paleozoic life of the Northwest Territories {{paleo-lobefinned-fish-stub