Location: The Kimberley, NW Australia.
Age: Upper Devonian, Frasnian. 350 million years.
Long, J. A. (1997). Ptyctodontid fishes from the Late Devonian Gogo Formation, Western Australia, with a revision of the European genus Ctenurela orvig, 1960. Geodiversitas, 19, 515-556
Long, J. A. (1995). The Rise of Fishes 500 million Years of Evolution. University of New South Wales Press, Sydney.
Long, J. A. A new plourdosteid arthrodire (Pisces; Placodermi) from the Late Devonian Gogo Formation, Western Australia. Palaeontology, 38, 36-62.
Long, J. A. et al. (1985).Osteology and functional morphology of the osteolepiform fish Gogonasus andrewsae, from the Upper Devonian Gogo Formation, Western Australia. Records of the W. Australian Museum, Supplement 53, 1-89.
Fitzroy Crossing and Geikie Gorge National Park.
Western Australia Museum.
Gogo fish Educational Package.
Western Australia Cabinet and Government.
Thanks to John Long at the Western Australian Museum for use of the images and to the Cabinet Office of Western Australia for the use of the placoderm geo-emblem.