Metaxygnathus is an extinct genus of ichthyostegalian found in Late Devonian deposits of New South Wales, Australia . It is known only from a lower jawbone. Previously thought to be a lobe-finned fish, it has now been reassigned to the earliest group of tetrapods. References Campbell, K.S.W. and M.W. Bell. 1977. "A primitive amphibian from the Late Devonian of New South Wales." Alcheringa 1: 369–382. External links Metaxygnathus denticulatus at Devonian Times Ichthyostegalia Prehistoric amphibians of Australia Paleozoic vertebrates of Oceania Devonian animals of Australia Late Devonian animals Devonian Oceania Fossil taxa described in 1977 Prehistoric tetrapod genera Fauna of New South Wales Famennian genera