The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography
The oldest bradoriid fauna from Australia, occurring in the lower Cambrian Ajax and Wirrapowie limestones of the Flinders Ranges, South Australia consists of eleven taxa, including one new genus and species, 'Quadricona madonnae' gen. et sp. nov. and two new species, 'Liangshanella ci...
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ftunivnewengland:oai:rune.une.edu.au:1959.11/9523 2023-08-27T04:06:16+02:00 The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography Topper, TP Skovsted, CB Brock, GA Paterson, John R School of Environmental and Rural Science orcid:0000-0003-2947-3912 2011 https://hdl.handle.net/1959.11/9523 en eng Elsevier BV 10.1016/j.gr.2010.05.012 https://hdl.handle.net/1959.11/9523 une:9714 Animal Systematics and Taxonomy Palaeontology (incl Palynology) Journal Article 2011 ftunivnewengland 2023-08-10T19:04:26Z The oldest bradoriid fauna from Australia, occurring in the lower Cambrian Ajax and Wirrapowie limestones of the Flinders Ranges, South Australia consists of eleven taxa, including one new genus and species, 'Quadricona madonnae' gen. et sp. nov. and two new species, 'Liangshanella circumbolina' sp. nov. and 'Zepaera jagoi' sp. nov. In the Ajax Limestone, 'Liangshanella circumbolina' sp. nov. occurs c. 20 m below the FAD of the zonal trilobite 'Abadiella huoi'. This pre-trilobitic occurrence represents the oldest bivalved arthropod hitherto known from East Gondwana and suggests a lower Cambrian (Series 2, Stage 3) age for the assemblage. The recognition of distinct bradoriid assemblages associated with the 'Abadiella huoi' (Atdabanian), 'Pararaia tatei', 'P. bunyerooensis' and 'P. janeae' (all Botoman) trilobite biozones in South Australia indicates great potential for future regional biostratigraphic correlation. Quantitative biogeographic analysis including new taxonomic data from the lower Cambrian of South Australia, highlights the strong endemism displayed by early Cambrian bradoriid communities and strengthens the close faunal affinities with South China and Antarctica. Article in Journal/Newspaper Antarc* Antarctica Research UNE - University of New England at Armidale, NSW Australia Ajax ENVELOPE(168.450,168.450,-71.800,-71.800) Flinders ENVELOPE(-66.667,-66.667,-69.267,-69.267) |
institution |
Open Polar |
collection |
Research UNE - University of New England at Armidale, NSW Australia |
op_collection_id |
ftunivnewengland |
language |
English |
topic |
Animal Systematics and Taxonomy Palaeontology (incl Palynology) |
spellingShingle |
Animal Systematics and Taxonomy Palaeontology (incl Palynology) Topper, TP Skovsted, CB Brock, GA Paterson, John R School of Environmental and Rural Science orcid:0000-0003-2947-3912 The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography |
topic_facet |
Animal Systematics and Taxonomy Palaeontology (incl Palynology) |
description |
The oldest bradoriid fauna from Australia, occurring in the lower Cambrian Ajax and Wirrapowie limestones of the Flinders Ranges, South Australia consists of eleven taxa, including one new genus and species, 'Quadricona madonnae' gen. et sp. nov. and two new species, 'Liangshanella circumbolina' sp. nov. and 'Zepaera jagoi' sp. nov. In the Ajax Limestone, 'Liangshanella circumbolina' sp. nov. occurs c. 20 m below the FAD of the zonal trilobite 'Abadiella huoi'. This pre-trilobitic occurrence represents the oldest bivalved arthropod hitherto known from East Gondwana and suggests a lower Cambrian (Series 2, Stage 3) age for the assemblage. The recognition of distinct bradoriid assemblages associated with the 'Abadiella huoi' (Atdabanian), 'Pararaia tatei', 'P. bunyerooensis' and 'P. janeae' (all Botoman) trilobite biozones in South Australia indicates great potential for future regional biostratigraphic correlation. Quantitative biogeographic analysis including new taxonomic data from the lower Cambrian of South Australia, highlights the strong endemism displayed by early Cambrian bradoriid communities and strengthens the close faunal affinities with South China and Antarctica. |
format |
Article in Journal/Newspaper |
author |
Topper, TP Skovsted, CB Brock, GA Paterson, John R School of Environmental and Rural Science orcid:0000-0003-2947-3912 |
author_facet |
Topper, TP Skovsted, CB Brock, GA Paterson, John R School of Environmental and Rural Science orcid:0000-0003-2947-3912 |
author_sort |
Topper, TP |
title |
The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography |
title_short |
The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography |
title_full |
The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography |
title_fullStr |
The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography |
title_full_unstemmed |
The oldest bivalved arthropods from the early Cambrian of East Gondwana: Systematics, biostratigraphy and biogeography |
title_sort |
oldest bivalved arthropods from the early cambrian of east gondwana: systematics, biostratigraphy and biogeography |
publisher |
Elsevier BV |
publishDate |
2011 |
url |
https://hdl.handle.net/1959.11/9523 |
long_lat |
ENVELOPE(168.450,168.450,-71.800,-71.800) ENVELOPE(-66.667,-66.667,-69.267,-69.267) |
geographic |
Ajax Flinders |
geographic_facet |
Ajax Flinders |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
10.1016/j.gr.2010.05.012 https://hdl.handle.net/1959.11/9523 une:9714 |
_version_ |
1775347084772245504 |