Metaxygnathus

Metaxygnathus; Temporal range: Famennian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Clade:	Tetrapodomorpha
Clade:	Elpistostegalia
Genus:	† Metaxygnathus ; Campbell & Bell, 1977
Type species
	†Metaxygnathus denticulus; Campbell & Bell, 1977

Last updated March 28, 2025

Metaxygnathus is an extinct genus of ichthyostegalian found in Late Devonian deposits of New South Wales, Australia.^[1] 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 tetrapodomorphs.^[2]

References

↑ Danny Kingsley (2002-12-19). "Four-legged fossil find in Asia rewrites history". ABC News.
↑ Clack, J.A.; Ahlberg, P.E.; Blom, H.; Finney, S.M. (2012). "A new genus of Devonian tetrapod from North-East Greenland, with new information on the lower jaw of Ichthyostega". Palaeontology. 55 (1): 73–86. Bibcode:2012Palgy..55...73C. doi: 10.1111/j.1475-4983.2011.01117.x .

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

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[1] Danny Kingsley (2002-12-19). "Four-legged fossil find in Asia rewrites history". ABC News.

[Ymeria-2] Clack, J.A.; Ahlberg, P.E.; Blom, H.; Finney, S.M. (2012). "A new genus of Devonian tetrapod from North-East Greenland, with new information on the lower jaw of Ichthyostega". Palaeontology. 55 (1): 73–86. Bibcode:2012Palgy..55...73C. doi: 10.1111/j.1475-4983.2011.01117.x .

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