Australian Museum Journal A new species of the Devonian Lungfish Dipnorhyncus from Wee Jasper, New South Wales

Shortform:
Campbell and Barwick, 1999, Rec. Aust. Mus. 51(2): 123–140
Author(s):
Campbell, K. S. W.; Barwick, R. E.
Year published:
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 package:
EndNote file
Title page:
Title page (9kb PDF)
Complete work:
Complete work (1474kb PDF)

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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