Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia
Late Silurian and Early Devonian conodonts are documented from outcropping limestones at nine Cobar Supergroup localities: the Booth Limestone, the Mountain Dam Limestone, the Beloura Tank Limestone Member of the Baledmund Formation, the “Lerida Limestone Member” of the Amphitheatre Group, and limes...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/36864cc4-d17b-4cde-a51f-538ca4dd7fd4 2024-06-23T07:50:47+00:00 Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia Mathieson, David Mawson, Ruth Simpson, Andrew J. Talent, John A. 2016 https://researchers.mq.edu.au/en/publications/36864cc4-d17b-4cde-a51f-538ca4dd7fd4 https://doi.org/10.3140/bull.geosci.1593 http://www.scopus.com/inward/record.url?scp=84997355358&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Mathieson , D , Mawson , R , Simpson , A J & Talent , J A 2016 , ' Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia ' , Bulletin of Geosciences , vol. 91 , no. 3 , pp. 583-652 . https://doi.org/10.3140/bull.geosci.1593 Australia Cobar supergroup Conodont phylogeny Conodonts Darling Basin Early Devonian Late Silurian New South Wales article 2016 ftmacquarieunicr https://doi.org/10.3140/bull.geosci.1593 2024-06-12T23:47:20Z Late Silurian and Early Devonian conodonts are documented from outcropping limestones at nine Cobar Supergroup localities: the Booth Limestone, the Mountain Dam Limestone, the Beloura Tank Limestone Member of the Baledmund Formation, the “Lerida Limestone Member” of the Amphitheatre Group, and limestones in Stoney Creek in the Gundabooka National Park, in the Troffs Formation in the Trundle Group and in the Derriwong Group at Myola. These (with the exception of Myola) and conodonts previously documented from the White Tank and Rookery limestone members of the Meryula Formation are Pragian in age, ranging from sulcatus Zone to the imprecisely defined pireneae Zone, with the uppermost part of one of them (the Booth Limestone) possibly extending into the earliest Emsian. The Derriwong Group carbonates are late Ludfordian, crispa Zone, in age and are the only remnants discovered to date of a Silurian marine incursion. Ages for the Devonian limestones are: Booth Limestone, late in the sulcatus Zone to “pireneae Zone” with the uppermost horizon possibly extending into the dehiscens Zone; Mountain Dam Limestone, sulcatus Zone with the uppermost preserved horizon inferred to have been late in the sulcatus Zone; the Beloura Tank Limestone Member, sulcatus Zone; the ?olistoliths constituting the “Lerida Limestone Member”, sulcatus Zone; and limestones in Stoney Creek in the Gunderbooka National Park, “pireneae Zone”. Conodonts previously documented from “The Rookery”-the White Tank and Rookery limestone members-are inferred to be sulcatus Zone. In terms of recently refined absolute ages, Devonian carbonate sedimentation in the Cobar Supergroup, though localised, thus spans a six-or-seven-million-year time slice. The Devonian limestones investigated were apparently deposited during a single, basin-wide sedimentary event that was conducive to accumulation of carbonate sediments at various loci. Several conodont species documented here are taxa found in Central Asia and Arctic North American localities. Previous examples of ... Article in Journal/Newspaper Arctic Macquarie University Research Portal Arctic Trundle ENVELOPE(-65.288,-65.288,-65.394,-65.394) Bulletin of Geosciences 583 652 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Australia Cobar supergroup Conodont phylogeny Conodonts Darling Basin Early Devonian Late Silurian New South Wales |
spellingShingle |
Australia Cobar supergroup Conodont phylogeny Conodonts Darling Basin Early Devonian Late Silurian New South Wales Mathieson, David Mawson, Ruth Simpson, Andrew J. Talent, John A. Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia |
topic_facet |
Australia Cobar supergroup Conodont phylogeny Conodonts Darling Basin Early Devonian Late Silurian New South Wales |
description |
Late Silurian and Early Devonian conodonts are documented from outcropping limestones at nine Cobar Supergroup localities: the Booth Limestone, the Mountain Dam Limestone, the Beloura Tank Limestone Member of the Baledmund Formation, the “Lerida Limestone Member” of the Amphitheatre Group, and limestones in Stoney Creek in the Gundabooka National Park, in the Troffs Formation in the Trundle Group and in the Derriwong Group at Myola. These (with the exception of Myola) and conodonts previously documented from the White Tank and Rookery limestone members of the Meryula Formation are Pragian in age, ranging from sulcatus Zone to the imprecisely defined pireneae Zone, with the uppermost part of one of them (the Booth Limestone) possibly extending into the earliest Emsian. The Derriwong Group carbonates are late Ludfordian, crispa Zone, in age and are the only remnants discovered to date of a Silurian marine incursion. Ages for the Devonian limestones are: Booth Limestone, late in the sulcatus Zone to “pireneae Zone” with the uppermost horizon possibly extending into the dehiscens Zone; Mountain Dam Limestone, sulcatus Zone with the uppermost preserved horizon inferred to have been late in the sulcatus Zone; the Beloura Tank Limestone Member, sulcatus Zone; the ?olistoliths constituting the “Lerida Limestone Member”, sulcatus Zone; and limestones in Stoney Creek in the Gunderbooka National Park, “pireneae Zone”. Conodonts previously documented from “The Rookery”-the White Tank and Rookery limestone members-are inferred to be sulcatus Zone. In terms of recently refined absolute ages, Devonian carbonate sedimentation in the Cobar Supergroup, though localised, thus spans a six-or-seven-million-year time slice. The Devonian limestones investigated were apparently deposited during a single, basin-wide sedimentary event that was conducive to accumulation of carbonate sediments at various loci. Several conodont species documented here are taxa found in Central Asia and Arctic North American localities. Previous examples of ... |
format |
Article in Journal/Newspaper |
author |
Mathieson, David Mawson, Ruth Simpson, Andrew J. Talent, John A. |
author_facet |
Mathieson, David Mawson, Ruth Simpson, Andrew J. Talent, John A. |
author_sort |
Mathieson, David |
title |
Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia |
title_short |
Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia |
title_full |
Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia |
title_fullStr |
Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia |
title_full_unstemmed |
Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia |
title_sort |
late silurian (ludlow) and early devonian (pragian) conodonts from the cobar supergroup, western new south wales, australia |
publishDate |
2016 |
url |
https://researchers.mq.edu.au/en/publications/36864cc4-d17b-4cde-a51f-538ca4dd7fd4 https://doi.org/10.3140/bull.geosci.1593 http://www.scopus.com/inward/record.url?scp=84997355358&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-65.288,-65.288,-65.394,-65.394) |
geographic |
Arctic Trundle |
geographic_facet |
Arctic Trundle |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Mathieson , D , Mawson , R , Simpson , A J & Talent , J A 2016 , ' Late Silurian (Ludlow) and early Devonian (Pragian) conodonts from the cobar supergroup, western New South Wales, Australia ' , Bulletin of Geosciences , vol. 91 , no. 3 , pp. 583-652 . https://doi.org/10.3140/bull.geosci.1593 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.3140/bull.geosci.1593 |
container_title |
Bulletin of Geosciences |
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583 |
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652 |
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1802641703320944640 |