Australian Museum Journal New Lamellibranchia from the Upper Permian of Western Australia

Shortform:
Fletcher, 1946, Rec. Aust. Mus. 21(7): 395–405
Author(s):
Fletcher, Harold O.
Year published:
1946
Title:
New Lamellibranchia from the Upper Permian of Western Australia
Serial title:
Records of the Australian Museum
Volume:
21
Issue:
7
Start page:
395
End page:
405
DOI:
10.3853/j.0067-1975.21.1946.557
Language:
English
Plates:
plates xxxiv–xxxv
Date published:
24 June 1946
Cover date:
24 June 1946
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
MOLLUSCA: BIVALVIA; PALAEONTOLOGY; PERMIAN: LATE
Digitized:
03 September 2009
Reference number:
557
EndNote package:
EndNote file
Title page:
Title page (134kb PDF)
Complete work:
Complete work (2665kb PDF)

Abstract

In this paper two new genera of lamellibranchia are recognized from the Upper Permian beds of Western Australia. Four species are described from the Wandagee Series, while two are also recorded from the Nooncanbah Series, its northern equivalent in. the West Kimberley Division. The shells are of particular interest as they possess a wide V or chevron-shaped type of ornamentation which is rarely found on palaeozoic shells. They are edentulous, posteriorly-gaping forms, possessing close affinities with mesozoic shells of the Family Pholadomyidae. The two new genera bear a close resemblance to Permian shells recently described from Madagascar by Astre (1934) and also have many points in common with Jurassic shells from the Spiti Shales described by Holdhaus (1913) as Goniomya Agassiz and Cosmomya, gen. nov.

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