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
Gill and Edwards, 1999, Rec. Aust. Mus. 51(2): 141–160
Author
Anthony G. Gill; A. J. Edwards
Year
1999
Title
Monophyly, interrelationships and description of three new genera in the dottyback fish subfamily Pseudoplesiopinae (Teleostei: Perciformes: Pseudochromidae)
Serial Title
Records of the Australian Museum
Volume
51
Issue
2
Start Page
141
End Page
160
DOI
10.3853/j.0067-1975.51.1999.1302
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; TAXONOMY
Digitized
20 October 1999
Available Online
20 October 1999
Reference Number
1302
EndNote
/Uploads/Journals/17881/1302.enw
Title Page
/Uploads/Journals/17881/1302.pdf
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Complete Work
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