Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica)
The biogeographic significance of Devonian macrovertebrate assemblages from East Gondwana is reviewed, with updates incorporating recent discoveries including new placoderms (antiarchs, groenlandaspid arthrodires, phyllolepids), sarcopterygians (mandageriine tristichopterids, actinistians, rhizodont...
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Online Access: | http://hdl.handle.net/1885/53014 https://doi.org/10.1016/j.palwor.2009.11.005 https://openresearch-repository.anu.edu.au/bitstream/1885/53014/5/Young_etal._Palaeoworld_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/53014/7/01_Young_Devonian_macrovertebrate_2010.pdf.jpg |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/53014 2024-01-14T10:01:27+01:00 Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) Young, Gavin Burrow, Carole Long, John Turner, Susan Choo, Brian http://hdl.handle.net/1885/53014 https://doi.org/10.1016/j.palwor.2009.11.005 https://openresearch-repository.anu.edu.au/bitstream/1885/53014/5/Young_etal._Palaeoworld_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/53014/7/01_Young_Devonian_macrovertebrate_2010.pdf.jpg unknown Elsevier 1871-174X http://hdl.handle.net/1885/53014 doi:10.1016/j.palwor.2009.11.005 https://openresearch-repository.anu.edu.au/bitstream/1885/53014/5/Young_etal._Palaeoworld_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/53014/7/01_Young_Devonian_macrovertebrate_2010.pdf.jpg Palaeoworld Keywords: biostratigraphy Devonian faunistics fossil record Gondwana macroinvertebrate paleobiogeography paleogeography paleomagnetism range expansion Antarctica Australia China Coelacanthimorpha Pragia Rhizodontida Tetrapoda Vertebrata Biogeography Biostratigraphy Devonian vertebrates Faunal connections Journal article ftanucanberra https://doi.org/10.1016/j.palwor.2009.11.005 2023-12-15T09:39:16Z The biogeographic significance of Devonian macrovertebrate assemblages from East Gondwana is reviewed, with updates incorporating recent discoveries including new placoderms (antiarchs, groenlandaspid arthrodires, phyllolepids), sarcopterygians (mandageriine tristichopterids, actinistians, rhizodontids), and actinopterygians. Key taxa are illustrated by new specimens. Empirical patterns indicating range expansion from the area of origin for particular groups are analysed and discussed. The almost complete absence of armoured agnathans from the Devonian of Australia remains one of the most significant differences to Northern Hemisphere deposits, implying an isolating mechanism (oceanic or climatic barrier) between Gondwana and Laurussia during the Silurian-Early Devonian. Increasing faunal exchange with Asia during the Devonian may have been initiated with Pragian-Emsian faunal turnovers in South Chinese assemblages. A Gondwanan pattern in Devonian vertebrates persists into the Frasnian, until the Great Devonian Interchange at or near the Frasnian-Famennian boundary establishes strong Laurussian affinities in the early Famennian, when phyllolepid placoderms first appear in the Northern Hemisphere. New data documented on Early Devonian phyllolepids from Gondwana indicate an extended biostratigraphic range, and a diversity maximum in the Givetian-Frasnian. A late Famennian faunal exchange with Asia is suggested by sinolepid antiarchs, but requires corroboration from other fish groups, with conflicting Laurussian affinities indicated by new sarcopterygian and acanthodian data. An alternative explanation of physiological adaptation within sinolepids is discussed, as is the key question of tetrapod origins, for which the only Devonian examples outside Laurussia occur in Australia and China. The vertebrate biogeographic patterns are completely contrary to palaeogeographic reconstructions based on palaeomagnetic evidence. Article in Journal/Newspaper Antarc* Antarctica Australian National University: ANU Digital Collections Palaeoworld 19 1-2 55 74 |
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Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: biostratigraphy Devonian faunistics fossil record Gondwana macroinvertebrate paleobiogeography paleogeography paleomagnetism range expansion Antarctica Australia China Coelacanthimorpha Pragia Rhizodontida Tetrapoda Vertebrata Biogeography Biostratigraphy Devonian vertebrates Faunal connections |
spellingShingle |
Keywords: biostratigraphy Devonian faunistics fossil record Gondwana macroinvertebrate paleobiogeography paleogeography paleomagnetism range expansion Antarctica Australia China Coelacanthimorpha Pragia Rhizodontida Tetrapoda Vertebrata Biogeography Biostratigraphy Devonian vertebrates Faunal connections Young, Gavin Burrow, Carole Long, John Turner, Susan Choo, Brian Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) |
topic_facet |
Keywords: biostratigraphy Devonian faunistics fossil record Gondwana macroinvertebrate paleobiogeography paleogeography paleomagnetism range expansion Antarctica Australia China Coelacanthimorpha Pragia Rhizodontida Tetrapoda Vertebrata Biogeography Biostratigraphy Devonian vertebrates Faunal connections |
description |
The biogeographic significance of Devonian macrovertebrate assemblages from East Gondwana is reviewed, with updates incorporating recent discoveries including new placoderms (antiarchs, groenlandaspid arthrodires, phyllolepids), sarcopterygians (mandageriine tristichopterids, actinistians, rhizodontids), and actinopterygians. Key taxa are illustrated by new specimens. Empirical patterns indicating range expansion from the area of origin for particular groups are analysed and discussed. The almost complete absence of armoured agnathans from the Devonian of Australia remains one of the most significant differences to Northern Hemisphere deposits, implying an isolating mechanism (oceanic or climatic barrier) between Gondwana and Laurussia during the Silurian-Early Devonian. Increasing faunal exchange with Asia during the Devonian may have been initiated with Pragian-Emsian faunal turnovers in South Chinese assemblages. A Gondwanan pattern in Devonian vertebrates persists into the Frasnian, until the Great Devonian Interchange at or near the Frasnian-Famennian boundary establishes strong Laurussian affinities in the early Famennian, when phyllolepid placoderms first appear in the Northern Hemisphere. New data documented on Early Devonian phyllolepids from Gondwana indicate an extended biostratigraphic range, and a diversity maximum in the Givetian-Frasnian. A late Famennian faunal exchange with Asia is suggested by sinolepid antiarchs, but requires corroboration from other fish groups, with conflicting Laurussian affinities indicated by new sarcopterygian and acanthodian data. An alternative explanation of physiological adaptation within sinolepids is discussed, as is the key question of tetrapod origins, for which the only Devonian examples outside Laurussia occur in Australia and China. The vertebrate biogeographic patterns are completely contrary to palaeogeographic reconstructions based on palaeomagnetic evidence. |
format |
Article in Journal/Newspaper |
author |
Young, Gavin Burrow, Carole Long, John Turner, Susan Choo, Brian |
author_facet |
Young, Gavin Burrow, Carole Long, John Turner, Susan Choo, Brian |
author_sort |
Young, Gavin |
title |
Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) |
title_short |
Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) |
title_full |
Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) |
title_fullStr |
Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) |
title_full_unstemmed |
Devonian macrovertebrate assemblages and biogeography of East Gondwana (Australasia, Antarctica) |
title_sort |
devonian macrovertebrate assemblages and biogeography of east gondwana (australasia, antarctica) |
publisher |
Elsevier |
url |
http://hdl.handle.net/1885/53014 https://doi.org/10.1016/j.palwor.2009.11.005 https://openresearch-repository.anu.edu.au/bitstream/1885/53014/5/Young_etal._Palaeoworld_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/53014/7/01_Young_Devonian_macrovertebrate_2010.pdf.jpg |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Palaeoworld |
op_relation |
1871-174X http://hdl.handle.net/1885/53014 doi:10.1016/j.palwor.2009.11.005 https://openresearch-repository.anu.edu.au/bitstream/1885/53014/5/Young_etal._Palaeoworld_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/53014/7/01_Young_Devonian_macrovertebrate_2010.pdf.jpg |
op_doi |
https://doi.org/10.1016/j.palwor.2009.11.005 |
container_title |
Palaeoworld |
container_volume |
19 |
container_issue |
1-2 |
container_start_page |
55 |
op_container_end_page |
74 |
_version_ |
1788067224869666816 |