A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia
A new phyllolepid placoderm occurrence from a low level in the Dulcie Sandstone, Georgina Basin, Northern Territory, lies about 200 metres stratigraphically above an older fish assemblage containing Wuttagoonaspis. A new species Austrophyllolepis dulciensis is characterised by an unusually broad ant...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/84105 2024-01-14T10:02:26+01:00 A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia Young, Gavin http://hdl.handle.net/1885/84105 unknown Linnean Society of New South Wales 0370-047X http://hdl.handle.net/1885/84105 Proceedings of the Linnean Society of New South Wales Keywords: Pisces Wuttagoonaspis Devonian Georgina Basin Phyllolepida Placoderm fishes Journal article ftanucanberra 2023-12-15T09:34:45Z A new phyllolepid placoderm occurrence from a low level in the Dulcie Sandstone, Georgina Basin, Northern Territory, lies about 200 metres stratigraphically above an older fish assemblage containing Wuttagoonaspis. A new species Austrophyllolepis dulciensis is characterised by an unusually broad anterior ventrolateral plate. The stratigraphic range of other species in this genus from southeastern Australia and Antarctica suggest a Givetian-Frasnian age. Early members of the order Phyllolepida are endemic to east Gondwana, and other phyllolepids of similar age occur in Turkey and Venezuela. In the Northern Hemisphere (Europe, Russia, Greenland, North America) phyllolepids are restricted to the latest Devonian stage (Famennian). This disjunct space-time distribution for the group supports a Gondwanan origin for the Phyllolepida, and later access to northern landmasses resulting from closure of the ocean between Gondwana and Laurussia 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: Pisces Wuttagoonaspis Devonian Georgina Basin Phyllolepida Placoderm fishes |
spellingShingle |
Keywords: Pisces Wuttagoonaspis Devonian Georgina Basin Phyllolepida Placoderm fishes Young, Gavin A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia |
topic_facet |
Keywords: Pisces Wuttagoonaspis Devonian Georgina Basin Phyllolepida Placoderm fishes |
description |
A new phyllolepid placoderm occurrence from a low level in the Dulcie Sandstone, Georgina Basin, Northern Territory, lies about 200 metres stratigraphically above an older fish assemblage containing Wuttagoonaspis. A new species Austrophyllolepis dulciensis is characterised by an unusually broad anterior ventrolateral plate. The stratigraphic range of other species in this genus from southeastern Australia and Antarctica suggest a Givetian-Frasnian age. Early members of the order Phyllolepida are endemic to east Gondwana, and other phyllolepids of similar age occur in Turkey and Venezuela. In the Northern Hemisphere (Europe, Russia, Greenland, North America) phyllolepids are restricted to the latest Devonian stage (Famennian). This disjunct space-time distribution for the group supports a Gondwanan origin for the Phyllolepida, and later access to northern landmasses resulting from closure of the ocean between Gondwana and Laurussia at or near the Frasnian-Famennian boundary. |
format |
Article in Journal/Newspaper |
author |
Young, Gavin |
author_facet |
Young, Gavin |
author_sort |
Young, Gavin |
title |
A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia |
title_short |
A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia |
title_full |
A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia |
title_fullStr |
A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia |
title_full_unstemmed |
A New Phyllolepid Placoderm Occurrence (Devonian Fish) from the Dulcie Sandstone, Georgina Basin, Central Australia |
title_sort |
new phyllolepid placoderm occurrence (devonian fish) from the dulcie sandstone, georgina basin, central australia |
publisher |
Linnean Society of New South Wales |
url |
http://hdl.handle.net/1885/84105 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_source |
Proceedings of the Linnean Society of New South Wales |
op_relation |
0370-047X http://hdl.handle.net/1885/84105 |
_version_ |
1788057457015128064 |