Abstract

Six species of syringostromatid stromatoporoids are described from the biostratigraphically well-constrained carbonate successions of the Broken River region, North Queensland; the various occurrences range from earliest Devonian (early Lochkovian) to Mid-Devonian (late Eifelian). Included are three new Lochkovian species, Atopostroma stearni from the uppermost part of the Jack Formation and the Martins Well Limestone Member of the succeeding Shield Creek Formation, A. protentum and Habrostroma alternum also from the Martins Well Limestone Member. Transitional forms between the species of Atopostroma and Habrostroma are recorded from the Martins Well fauna. In addition Atopostroma distans (Ripper, 1937) is found in the Lomandra Limestone (late Emsian), and is present in reworked pebbles of the Dip Creek and the Chinaman Creek limestones of possible late Emsian-Eifelian. Sparse records of Columnostroma sp. in the Mid-Devonian (late Eifelian) Dosey Limestone, and reworked clasts of Parallelopora sp. in the Chinaman Creek Limestone, also occur. Characteristic structural elements of syringostromatid fauna are described including pachysteles, pachystromes and microlaminae, and microreticulate (acosmoreticular and clinoreticular) microstructures in the best preserved specimens. Also aspects of the evolutionary development of the fauna and the nature of the preservation of certain structural elements are discussed.

 
Download Complete Work

Bibliographic Data

Short Form
Webby and Zhen, 2008, Rec. Aust. Mus. 60(3): 215–236
Author
Barry D. Webby; Yong Yi Zhen
Year
2008
Title
Devonian syringostromatid stromatoporoids from the Broken River region, North Queensland
Serial Title
Records of the Australian Museum
Volume
60
Issue
3
Start Page
215
End Page
236
DOI
10.3853/j.0067-1975.60.2008.1497
Language
English
Date Published
01 October 2008
Cover Date
01 October 2008
ISSN
0067-1975
CODEN
RAUMAJ
Publisher
The Australian Museum
Place Published
Sydney, Australia
Subjects
DEVONIAN; PALAEONTOLOGY; FOSSIL; TAXONOMY
Digitized
01 October 2008
Available Online
10 October 2008
Reference Number
1497
EndNote
/Uploads/Journals/18065/1497.enw
Title Page
/Uploads/Journals/18065/1497.pdf
File size: 114kB
Complete Work
/Uploads/Journals/18065/1497_complete.pdf
File size: 2588kB