Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia
The 'buchanosteid' placoderms are best known from the Early Devonian of Australia, but also occur in China, Russia, Central Asia and the Middle East. Here we rediagnose the type species Buchanosteus confertituberculatus (Hills 1936) from the type locality at Buchan, Victoria, in the light...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/70829 2024-01-14T10:04:42+01:00 Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia Young, Gavin Long, John Mark-Kurik, Elga http://hdl.handle.net/1885/70829 https://doi.org/10.1071/ZO13081 https://openresearch-repository.anu.edu.au/bitstream/1885/70829/5/U3488905xPUB2432.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70829/7/01_Young_Taxonomic_revision_of_2014.pdf.jpg unknown CSIRO Publishing 0004-959X http://hdl.handle.net/1885/70829 doi:10.1071/ZO13081 https://openresearch-repository.anu.edu.au/bitstream/1885/70829/5/U3488905xPUB2432.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70829/7/01_Young_Taxonomic_revision_of_2014.pdf.jpg Australian Journal of Zoology Journal article ftanucanberra https://doi.org/10.1071/ZO13081 2023-12-15T09:35:30Z The 'buchanosteid' placoderms are best known from the Early Devonian of Australia, but also occur in China, Russia, Central Asia and the Middle East. Here we rediagnose the type species Buchanosteus confertituberculatus (Hills 1936) from the type locality at Buchan, Victoria, in the light of new material of both head and trunk shields. The superfamily Buchanosteoidea Denison, 1978 is redefined to unite taxa that share a similar skull roof with separate rostro-pineal (ethmoid) bone, and postethmoid skull pattern characterised by a large trapezoidal nuchal, strap-like short and broad preorbitals, large subrectangular centrals, small postorbitals not contacting the paranuchals, and large, elongate marginal plates. The Family Buchanosteidae is redefined on skull roof and parasphenoid shape and trunk armour features as a monotypic family within the Buchanosteoidea. A new family (Parabuchanosteidae nov.) includes taxa with the posterior lateral plate overlapping the anterior dorsolateral plate externally. Two new buchanosteids are described, Richardosteus barwickorum gen. et sp. nov., from Burrinjuck, south-eastern Australia, and Urvaspis lithuanica gen. et sp. nov., from Severnaya Zemlya, Russia. Article in Journal/Newspaper Arctic Severnaya Zemlya Australian National University: ANU Digital Collections Arctic Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Denison ENVELOPE(142.667,142.667,-67.000,-67.000) Buchan ENVELOPE(-44.700,-44.700,-60.766,-60.766) Australian Journal of Zoology 62 1 26 |
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Open Polar |
collection |
Australian National University: ANU Digital Collections |
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ftanucanberra |
language |
unknown |
description |
The 'buchanosteid' placoderms are best known from the Early Devonian of Australia, but also occur in China, Russia, Central Asia and the Middle East. Here we rediagnose the type species Buchanosteus confertituberculatus (Hills 1936) from the type locality at Buchan, Victoria, in the light of new material of both head and trunk shields. The superfamily Buchanosteoidea Denison, 1978 is redefined to unite taxa that share a similar skull roof with separate rostro-pineal (ethmoid) bone, and postethmoid skull pattern characterised by a large trapezoidal nuchal, strap-like short and broad preorbitals, large subrectangular centrals, small postorbitals not contacting the paranuchals, and large, elongate marginal plates. The Family Buchanosteidae is redefined on skull roof and parasphenoid shape and trunk armour features as a monotypic family within the Buchanosteoidea. A new family (Parabuchanosteidae nov.) includes taxa with the posterior lateral plate overlapping the anterior dorsolateral plate externally. Two new buchanosteids are described, Richardosteus barwickorum gen. et sp. nov., from Burrinjuck, south-eastern Australia, and Urvaspis lithuanica gen. et sp. nov., from Severnaya Zemlya, Russia. |
format |
Article in Journal/Newspaper |
author |
Young, Gavin Long, John Mark-Kurik, Elga |
spellingShingle |
Young, Gavin Long, John Mark-Kurik, Elga Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia |
author_facet |
Young, Gavin Long, John Mark-Kurik, Elga |
author_sort |
Young, Gavin |
title |
Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia |
title_short |
Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia |
title_full |
Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia |
title_fullStr |
Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia |
title_full_unstemmed |
Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the early devonian of south-eastern australia and arctic Russia |
title_sort |
taxonomic revision of buchanosteoid placoderms (arthrodira) from the early devonian of south-eastern australia and arctic russia |
publisher |
CSIRO Publishing |
url |
http://hdl.handle.net/1885/70829 https://doi.org/10.1071/ZO13081 https://openresearch-repository.anu.edu.au/bitstream/1885/70829/5/U3488905xPUB2432.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70829/7/01_Young_Taxonomic_revision_of_2014.pdf.jpg |
long_lat |
ENVELOPE(98.000,98.000,79.500,79.500) ENVELOPE(142.667,142.667,-67.000,-67.000) ENVELOPE(-44.700,-44.700,-60.766,-60.766) |
geographic |
Arctic Severnaya Zemlya Denison Buchan |
geographic_facet |
Arctic Severnaya Zemlya Denison Buchan |
genre |
Arctic Severnaya Zemlya |
genre_facet |
Arctic Severnaya Zemlya |
op_source |
Australian Journal of Zoology |
op_relation |
0004-959X http://hdl.handle.net/1885/70829 doi:10.1071/ZO13081 https://openresearch-repository.anu.edu.au/bitstream/1885/70829/5/U3488905xPUB2432.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70829/7/01_Young_Taxonomic_revision_of_2014.pdf.jpg |
op_doi |
https://doi.org/10.1071/ZO13081 |
container_title |
Australian Journal of Zoology |
container_volume |
62 |
container_issue |
1 |
container_start_page |
26 |
_version_ |
1788059189588787200 |