Australian Museum Journal Studies on Polyzoa (Bryozoa) from the Endeavour Expedition, 1909–1914. I. A new lunulitiform polyzoan (Ascophora) from south-east Australia

Shortform:
Powell, 1966, Rec. Aust. Mus. 27(2): 19–26
Author(s):
Powell, N. A.
Year published:
1966
Title:
Studies on Polyzoa (Bryozoa) from the Endeavour Expedition, 1909–1914. I. A new lunulitiform polyzoan (Ascophora) from south-east Australia
Serial title:
Records of the Australian Museum
Volume:
27
Issue:
2
Start page:
19
End page:
26
DOI:
10.3853/j.0067-1975.27.1966.437
Language:
English
Plates:
plate 1
Date published:
13 June 1966
Cover date:
13 June 1966
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
BRYOZOA
Digitized:
09 December 2008
Available online:
03 March 2009
Reference number:
437
EndNote package:
EndNote file
Title page:
Title page (124kb PDF)
Complete work:
Complete work (2074kb PDF)

Abstract

A monotypic family is erected in order to accommodate a new lunulitiform ascophoran polyzoan, referred here to Australiana n.gen. Family characteristics comprise the cupuliform zoarium with quadrate zooecia radially arranged in single or double rows. The dimorphic orifice is elongate in ordinary zooecia and transversely elliptical in fertile zooecia. A pair of large fenestrae perforate the outer wall of the ectooecium. The basal surface, strongly concave in mature zooecia, is perforated by large foramina, interpreted as kenozooecia, and bears several radicular chambers. Avicularia are not developed. The species is known as a fossil from the lower Muddy Creek (Middle Miocene) beds of Victoria, and from the Recent Peronian faunal province.

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