Australian Museum Journal Additions to the Middle Devonian and Carboniferous corals in the Australian Museum

Shortform:
Etheridge, 1902, Rec. Aust. Mus. 4(7): 253–262
Author(s):
Etheridge, R.
Year published:
1902
Title:
Additions to the Middle Devonian and Carboniferous corals in the Australian Museum
Serial title:
Records of the Australian Museum
Volume:
4
Issue:
7
Start page:
253
End page:
262
DOI:
10.3853/j.0067-1975.4.1902.1101
Language:
English
Plates:
plates xxxvii–xl
Date published:
25 August 1902
Cover date:
25 August 1902
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
CORAL; DEVONIAN; CARBONIFEROUS; FOSSIL
Digitized:
13 November 2008
Available online:
03 March 2009
Reference number:
1101
EndNote package:
EndNote file
Title page:
Title page (85kb PDF)
Complete work:
Complete work (2418kb PDF)

Abstract

Corallum composed of fasciculate to sub-compound corallites, forming more or less large globose colonies. Corallites radiating from a common centre, comparatively short, but the heighth of the corallum increased by repeated gemmation; straight or slightly flexuous, often laterally united into clusters by a partial union of the walls, but without exothecal outgrowths, circular when single, imperfectly polygonal when united, and with an average diameter of eight millimetres; walls thin; calices deep. Septal area as a very distinct peripheral ring, from a quarter to one fifth the width of a corallite, forming a flat border around each calice; septa 30–40, all primary, proximally straight, distally flexuous, delicate, and at times laterally denticulate, extending inwards for about one quarter the width of the corallites. Interseptal loculi occupied either by complete transverse dissepiments forming several cycles, particularly towards the distal portions of the loculi, or incomplete, forming irregular vesicles within the transverse dissepiments, peripheral portions of the loculi sometimes quite devoid of dissepiments, leaving clear spaces. Tabulate area comparatively large; tabulae very variable both in their distance apart and in character; they may be moderately close, very close, or distant from one another, horizontal, rather oblique, slightly concave, or inosculating, when vesicles are formed, semilunate, lenticular, or even globular in form. Gemmation parietal and frequent.

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