An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent
A second species of the placoderm genus Placolepis (Pl. harajica sp. nov.), based on a single articulated specimen from Givetian-Frasnian strata in the MacDonnell Ranges, demonstrates the occurrence of this taxon across the Australian craton. Placolepis (order Phyllolepida) is endemic to east Gondwa...
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ftanucanberra:oai:digitalcollections.anu.edu.au:1885/82089 2023-05-15T13:35:18+02:00 An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent Young, Gavin 2015-12-13T22:54:06Z http://hdl.handle.net/1885/82089 unknown Cambridge University Press 0016-7568 http://hdl.handle.net/1885/82089 Geological Magazine Keywords: biostratigraphy Devonian fish Gondwana Old Red Sandstone paleobiogeography Australasia Australia Eastern Hemisphere World Entovalva Placodermi Biostratigraphy Central Australia Palaeogeography Phyllolepid Placoderm fish Journal article 2015 ftanucanberra 2015-12-28T23:37:57Z A second species of the placoderm genus Placolepis (Pl. harajica sp. nov.), based on a single articulated specimen from Givetian-Frasnian strata in the MacDonnell Ranges, demonstrates the occurrence of this taxon across the Australian craton. Placolepis (order Phyllolepida) is endemic to east Gondwana, and other phyllolepids are widespread in the Givetian and younger of Gondwana (Australia, Antarctica, Turkey, Venezuela), but do not occur until Late Devonian (Famennian) time in the Northern Hemisphere (Europe, Russia, Greenland, North America). The disjunct space-time distribution of the Phyllolepida is inconsistent with palaeomagnetic evidence indicating a wide equatorial ocean between Gondwana and Laurussia in Late Devonian time. This new species provides additional evidence supporting a Gondwana origin for the group, and later access to northern landmasses resulting from closure of the ocean between Gondwana and Laurussia and continental connection at or near the Frasnian-Famennian boundary. Article in Journal/Newspaper Antarc* Antarctica Greenland Australian National University: ANU Digital Collections Greenland |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: biostratigraphy Devonian fish Gondwana Old Red Sandstone paleobiogeography Australasia Australia Eastern Hemisphere World Entovalva Placodermi Biostratigraphy Central Australia Palaeogeography Phyllolepid Placoderm fish |
spellingShingle |
Keywords: biostratigraphy Devonian fish Gondwana Old Red Sandstone paleobiogeography Australasia Australia Eastern Hemisphere World Entovalva Placodermi Biostratigraphy Central Australia Palaeogeography Phyllolepid Placoderm fish Young, Gavin An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent |
topic_facet |
Keywords: biostratigraphy Devonian fish Gondwana Old Red Sandstone paleobiogeography Australasia Australia Eastern Hemisphere World Entovalva Placodermi Biostratigraphy Central Australia Palaeogeography Phyllolepid Placoderm fish |
description |
A second species of the placoderm genus Placolepis (Pl. harajica sp. nov.), based on a single articulated specimen from Givetian-Frasnian strata in the MacDonnell Ranges, demonstrates the occurrence of this taxon across the Australian craton. Placolepis (order Phyllolepida) is endemic to east Gondwana, and other phyllolepids are widespread in the Givetian and younger of Gondwana (Australia, Antarctica, Turkey, Venezuela), but do not occur until Late Devonian (Famennian) time in the Northern Hemisphere (Europe, Russia, Greenland, North America). The disjunct space-time distribution of the Phyllolepida is inconsistent with palaeomagnetic evidence indicating a wide equatorial ocean between Gondwana and Laurussia in Late Devonian time. This new species provides additional evidence supporting a Gondwana origin for the group, and later access to northern landmasses resulting from closure of the ocean between Gondwana and Laurussia and continental connection at or near the Frasnian-Famennian boundary. |
format |
Article in Journal/Newspaper |
author |
Young, Gavin |
author_facet |
Young, Gavin |
author_sort |
Young, Gavin |
title |
An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent |
title_short |
An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent |
title_full |
An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent |
title_fullStr |
An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent |
title_full_unstemmed |
An articulated phyllolepid fish (Placodermi) from the Devonian of central Australia: implications for non-marine connections with the Old Red Sandstone continent |
title_sort |
articulated phyllolepid fish (placodermi) from the devonian of central australia: implications for non-marine connections with the old red sandstone continent |
publisher |
Cambridge University Press |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/82089 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
Geological Magazine |
op_relation |
0016-7568 http://hdl.handle.net/1885/82089 |
_version_ |
1766063961857327104 |