Abstract

A new large mandible of Dipnorhynchus from the Early Devonian serotinus Zone (late Emsian) at Wee Jasper, is given the status of a new species, D. cathlesae n.sp. This fossil characterised by its size; relative depth with respect to its length; short anterior furrow, deeply bordered by a raised broad rim of dentary between itself and the labial pit; large foramen for a nerve in the posteromedial end of the labial furrow; a strong furrow from the adductor pit to the posterior end of the labial pit; thick dentary; lack of tubercles (blisters) on the prearticular plate; and an adductor pit wide posteriorly and narrowing gradually anteriorly. The surface of the tooth plate is not made of dentine, but of bone formed on the surface of the prearticular. This species represents the youngest known occurrence of Dipnorhynchus in the Murrumbidgee sequence.

 
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Bibliographic Data

Short Form
Campbell and Barwick, 1999, Rec. Aust. Mus. 51(2): 123–140
Author
K. S. W. Campbell; R. E. Barwick
Year
1999
Title
A new species of the Devonian Lungfish Dipnorhyncus from Wee Jasper, New South Wales
Serial Title
Records of the Australian Museum
Volume
51
Issue
2
Start Page
123
End Page
140
DOI
10.3853/j.0067-1975.51.1999.1301
Language
English
Date Published
20 October 1999
Cover Date
20 October 1999
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
FISHES; DEVONIAN
Digitized
20 October 1999
Available Online
20 October 1999
Reference Number
1301
EndNote
/Uploads/Journals/17884/1301.enw
Title Page
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Complete Work
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