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Australian Triassic lungfish skulls

Published online by Cambridge University Press:  20 May 2016

A. Kemp
A. Kemp*
Affiliation:
Department of Anatomy, University of Queensland, St. Lucia, Queensland 4072, Australia
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Abstract

Skull bones of Gosfordia truncata Woodward, 1891, from the Lower Triassic Hawkesbury Sandstone of New South Wales, Australia, are described for the first time. The skull roofing pattern suggests possible affinities between G. truncata and Paraceratodus germaini (Triassic, southwest Madagascar). A three-dimensional reconstruction of the skull of Ceratodus formosus Wade, 1935, based on the holotype, found in a Lower Triassic deposit at Brookvale in New South Wales, is included. This reconstruction indicates that this species is not closely related either to the recent Australian lungfish, Neoceratodus forsteri, or to the Triassic Ceratodus (Tellerodus) sturii from Nord Alpen in Austria, and it has no close affinities with G. truncata. A new genus, Ariguna, is therefore proposed to receive Ceratodus formosus Wade, 1935. Without associated tooth plate material, G. truncata and A. formosa cannot be defined more precisely.

Type
Research Article
Information
Journal of Paleontology , Volume 68 , Issue 3 , May 1994 , pp. 647 - 654
Copyright
Copyright © The Paleontological Society 

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