Early triassic tetrapod faunas of southeastern gondwana
A modified version of the Simpson index is used to assess similarities between the Early Triassic tetrapod faunas of Australia, Antarctica, India and South Africa. This index takes into account the relative abundances of taxa, and not merely their presence or absence. Antarctic, Indian and African f...
Published in: | Alcheringa: An Australasian Journal of Palaeontology |
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Format: | Article in Journal/Newspaper |
Language: | unknown |
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Informa UK Limited
1986
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Online Access: | https://espace.library.uq.edu.au/view/UQ:398151 |
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:398151 2023-05-15T13:59:53+02:00 Early triassic tetrapod faunas of southeastern gondwana Thulborn R.A. 1986-01-01 https://espace.library.uq.edu.au/view/UQ:398151 unknown Informa UK Limited doi:10.1080/03115518608619160 issn:1752-0754 Palaeontology Ecology Evolution Behavior and Systematics 1105 Dentistry 1911 Palaeontology Journal Article 1986 ftunivqespace https://doi.org/10.1080/03115518608619160 2020-11-03T00:34:51Z A modified version of the Simpson index is used to assess similarities between the Early Triassic tetrapod faunas of Australia, Antarctica, India and South Africa. This index takes into account the relative abundances of taxa, and not merely their presence or absence. Antarctic, Indian and African faunas are all found to be very similar — one to another and each to a hypothetical ‘average’ fauna. The Australian fauna is distinctly different: it resembles other faunas in terms of the presence or absence of taxa, but it differs greatly in the relative abundances of those taxa. Most significant of those differences is the abundance of labyrinthodont amphibians and the commensurate rarity of reptiles. The unusual composition of the Australian fauna might be explained to a large extent by geographic isolation. Article in Journal/Newspaper Antarc* Antarctic Antarctica The University of Queensland: UQ eSpace Antarctic Indian Alcheringa: An Australasian Journal of Palaeontology 10 3 297 313 |
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Open Polar |
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The University of Queensland: UQ eSpace |
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ftunivqespace |
language |
unknown |
topic |
Palaeontology Ecology Evolution Behavior and Systematics 1105 Dentistry 1911 Palaeontology |
spellingShingle |
Palaeontology Ecology Evolution Behavior and Systematics 1105 Dentistry 1911 Palaeontology Thulborn R.A. Early triassic tetrapod faunas of southeastern gondwana |
topic_facet |
Palaeontology Ecology Evolution Behavior and Systematics 1105 Dentistry 1911 Palaeontology |
description |
A modified version of the Simpson index is used to assess similarities between the Early Triassic tetrapod faunas of Australia, Antarctica, India and South Africa. This index takes into account the relative abundances of taxa, and not merely their presence or absence. Antarctic, Indian and African faunas are all found to be very similar — one to another and each to a hypothetical ‘average’ fauna. The Australian fauna is distinctly different: it resembles other faunas in terms of the presence or absence of taxa, but it differs greatly in the relative abundances of those taxa. Most significant of those differences is the abundance of labyrinthodont amphibians and the commensurate rarity of reptiles. The unusual composition of the Australian fauna might be explained to a large extent by geographic isolation. |
format |
Article in Journal/Newspaper |
author |
Thulborn R.A. |
author_facet |
Thulborn R.A. |
author_sort |
Thulborn R.A. |
title |
Early triassic tetrapod faunas of southeastern gondwana |
title_short |
Early triassic tetrapod faunas of southeastern gondwana |
title_full |
Early triassic tetrapod faunas of southeastern gondwana |
title_fullStr |
Early triassic tetrapod faunas of southeastern gondwana |
title_full_unstemmed |
Early triassic tetrapod faunas of southeastern gondwana |
title_sort |
early triassic tetrapod faunas of southeastern gondwana |
publisher |
Informa UK Limited |
publishDate |
1986 |
url |
https://espace.library.uq.edu.au/view/UQ:398151 |
geographic |
Antarctic Indian |
geographic_facet |
Antarctic Indian |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
doi:10.1080/03115518608619160 issn:1752-0754 |
op_doi |
https://doi.org/10.1080/03115518608619160 |
container_title |
Alcheringa: An Australasian Journal of Palaeontology |
container_volume |
10 |
container_issue |
3 |
container_start_page |
297 |
op_container_end_page |
313 |
_version_ |
1766268810682171392 |