Abstract

Equisetalean fossil plant remains of Early to Middle Triassic age from New South Wales are described. Robust and persistent nodal diaphragms composed of three zones; a broad central pith disc, a vascular cylinder and a cortical region surrounded by a sheath of conjoined leaf bases, are placed in Nododendron benolongensis n.sp. The new genus Townroviamites is erected for stems previously assigned to Phyllotheca brookvalensis which bear whorls of leaves forming a narrow basal sheath and the number of leaves matches the number of vascular bundles. Finely striated stems bearing leaf whorls consisting of several foliar lobes each formed from four to seven linear conjoined leaves are described as Paraschizoneura jonesii n.sp. Doubts are raised about the presence of the common Permian Gondwanan sphenophyte species Phyllotheca australis and the Northern Hemisphere genus Neocalamites in Middle Triassic floras of Gondwana.

 
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Bibliographic Data

Short Form
Holmes, 2001, Rec. Aust. Mus. 53(1): 9–20
Author
W. B. K. Holmes
Year
2001
Title
Equisetalean plant remains from the Early to Middle Triassic of New South Wales, Australia
Serial Title
Records of the Australian Museum
Volume
53
Issue
1
Start Page
9
End Page
20
DOI
10.3853/j.0067-1975.53.2001.1320
Language
English
Date Published
09 May 2001
Cover Date
09 May 2001
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Digitized
09 May 2001
Available Online
09 May 2001
Reference Number
1320
EndNote
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Title Page
/Uploads/Journals/17902/1320.pdf
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Complete Work
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