Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence
The geological context and evidence of age for three Australian occurrences attributed to Devonian tetrapods (trackways from Genoa River and the Grampians in Victoria, and an isolated jaw from Jemalong near Forbes in New South Wales) are discussed and updated. Associated fish remains indicate a Late...
Published in: | Alcheringa: An Australasian Journal of Palaeontology |
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Online Access: | http://hdl.handle.net/1885/29833 https://doi.org/10.1080/03115510609506875 |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/29833 2024-01-14T09:59:42+01:00 Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence Young, Gavin http://hdl.handle.net/1885/29833 https://doi.org/10.1080/03115510609506875 unknown Geological Society of Australia 0311-5518 http://hdl.handle.net/1885/29833 doi:10.1080/03115510609506875 Alcheringa Keywords: Pisces Tetrapoda Vertebrata Australia Devonian Origins Placoderms Tetrapods Journal article ftanucanberra https://doi.org/10.1080/03115510609506875 2023-12-15T09:32:57Z The geological context and evidence of age for three Australian occurrences attributed to Devonian tetrapods (trackways from Genoa River and the Grampians in Victoria, and an isolated jaw from Jemalong near Forbes in New South Wales) are discussed and updated. Associated fish remains indicate a Late Silurian or earliest Devonian age for the Grampians occurrence, and a Late Devonian (probably Frasnian) age for the Jemalong and Genoa River occurrences, although a Famennian age cannot be entirely excluded. The very sparse fossil record of Devonian tetrapods from the largest landmass of the time (Gondwana) is noted, as is the possibly earlier (?Frasnian) age for a tetrapod jaw recently reported from China. Consideration of new discoveries of sarcopterygian (lobefinned) fishes in Australia-Antarctica (East Gondwana), and the time-space distribution of some Devonian fishes, in particular phyllolepid and other placoderms associated with tetrapods in both Southern and Northern Hemispheres, but with a different age range, provide grounds for suggesting an alternative to the hypothesis that tetrapods evolved during a narrow time interval (Middle-Late Devonian) in the northern continent of Laurussia. The evidence for Frasnian-Famennian faunal interchange between Gondwana and Laurussia involving various Devonian vertebrate groups is summarised, and the possible utility of some placoderm fish groups as indicator species for tetrapod origins is discussed. Article in Journal/Newspaper Antarc* Antarctica Australian National University: ANU Digital Collections Forbes ENVELOPE(-66.550,-66.550,-67.783,-67.783) Alcheringa: An Australasian Journal of Palaeontology 30 sup1 409 428 |
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Open Polar |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
language |
unknown |
topic |
Keywords: Pisces Tetrapoda Vertebrata Australia Devonian Origins Placoderms Tetrapods |
spellingShingle |
Keywords: Pisces Tetrapoda Vertebrata Australia Devonian Origins Placoderms Tetrapods Young, Gavin Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence |
topic_facet |
Keywords: Pisces Tetrapoda Vertebrata Australia Devonian Origins Placoderms Tetrapods |
description |
The geological context and evidence of age for three Australian occurrences attributed to Devonian tetrapods (trackways from Genoa River and the Grampians in Victoria, and an isolated jaw from Jemalong near Forbes in New South Wales) are discussed and updated. Associated fish remains indicate a Late Silurian or earliest Devonian age for the Grampians occurrence, and a Late Devonian (probably Frasnian) age for the Jemalong and Genoa River occurrences, although a Famennian age cannot be entirely excluded. The very sparse fossil record of Devonian tetrapods from the largest landmass of the time (Gondwana) is noted, as is the possibly earlier (?Frasnian) age for a tetrapod jaw recently reported from China. Consideration of new discoveries of sarcopterygian (lobefinned) fishes in Australia-Antarctica (East Gondwana), and the time-space distribution of some Devonian fishes, in particular phyllolepid and other placoderms associated with tetrapods in both Southern and Northern Hemispheres, but with a different age range, provide grounds for suggesting an alternative to the hypothesis that tetrapods evolved during a narrow time interval (Middle-Late Devonian) in the northern continent of Laurussia. The evidence for Frasnian-Famennian faunal interchange between Gondwana and Laurussia involving various Devonian vertebrate groups is summarised, and the possible utility of some placoderm fish groups as indicator species for tetrapod origins is discussed. |
format |
Article in Journal/Newspaper |
author |
Young, Gavin |
author_facet |
Young, Gavin |
author_sort |
Young, Gavin |
title |
Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence |
title_short |
Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence |
title_full |
Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence |
title_fullStr |
Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence |
title_full_unstemmed |
Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence |
title_sort |
biostratigraphic and biogeographic context for tetrapod origins during the devonian: australian evidence |
publisher |
Geological Society of Australia |
url |
http://hdl.handle.net/1885/29833 https://doi.org/10.1080/03115510609506875 |
long_lat |
ENVELOPE(-66.550,-66.550,-67.783,-67.783) |
geographic |
Forbes |
geographic_facet |
Forbes |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Alcheringa |
op_relation |
0311-5518 http://hdl.handle.net/1885/29833 doi:10.1080/03115510609506875 |
op_doi |
https://doi.org/10.1080/03115510609506875 |
container_title |
Alcheringa: An Australasian Journal of Palaeontology |
container_volume |
30 |
container_issue |
sup1 |
container_start_page |
409 |
op_container_end_page |
428 |
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1788060409549291520 |