The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities
The fossil community from the Early Miocene Cape Melville Formation (King George Island, Antarctica) does not show the archaic retrograde nature of modern Antarctic marine communities, despite evidence, such as the presence of dropstones, diamictites and striated rocks, that it was deposited in a gl...
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ftnerc:oai:nora.nerc.ac.uk:503542 2023-05-15T13:48:08+02:00 The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities Whittle, Rowan Quaglio, Fernanda Griffiths, Huw Linse, Katrin Crame, J. Alistair 2014-01 text http://nora.nerc.ac.uk/id/eprint/503542/ https://nora.nerc.ac.uk/id/eprint/503542/1/Early%20Miocene%20Cape%20Melville%20Formation%20AAM.pdf en eng https://nora.nerc.ac.uk/id/eprint/503542/1/Early%20Miocene%20Cape%20Melville%20Formation%20AAM.pdf Whittle, Rowan orcid:0000-0001-6953-5829 Quaglio, Fernanda; Griffiths, Huw orcid:0000-0003-1764-223X Linse, Katrin orcid:0000-0003-3477-3047 Crame, J. Alistair orcid:0000-0002-5027-9965 . 2014 The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities. Naturwissenschaften, 101 (1). 47-59. https://doi.org/10.1007/s00114-013-1128-0 <https://doi.org/10.1007/s00114-013-1128-0> Publication - Article PeerReviewed 2014 ftnerc https://doi.org/10.1007/s00114-013-1128-0 2023-02-04T19:37:54Z The fossil community from the Early Miocene Cape Melville Formation (King George Island, Antarctica) does not show the archaic retrograde nature of modern Antarctic marine communities, despite evidence, such as the presence of dropstones, diamictites and striated rocks, that it was deposited in a glacial environment. Unlike modern Antarctic settings, and the upper units of the Eocene La Meseta Formation on Seymour Island, Antarctica, which are 10 million years older, the Cape Melville Formation community is not dominated by sessile suspension feeding ophiuroids, crinoids or brachiopods. Instead, it is dominated by infaunal bivalves, with a significant component of decapods, similar to present day South American settings. It is possible that the archaic retrograde structure of the modern community did not fully evolve until relatively recently, maybe due to factors such as further cooling and isolation of the continent leading to glaciations, which resulted in a loss of shallow shelf habitats. Article in Journal/Newspaper Antarc* Antarctic Antarctica King George Island Seymour Island Natural Environment Research Council: NERC Open Research Archive Antarctic King George Island Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Cape Melville ENVELOPE(-57.617,-57.617,-62.033,-62.033) Naturwissenschaften 101 1 47 59 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
The fossil community from the Early Miocene Cape Melville Formation (King George Island, Antarctica) does not show the archaic retrograde nature of modern Antarctic marine communities, despite evidence, such as the presence of dropstones, diamictites and striated rocks, that it was deposited in a glacial environment. Unlike modern Antarctic settings, and the upper units of the Eocene La Meseta Formation on Seymour Island, Antarctica, which are 10 million years older, the Cape Melville Formation community is not dominated by sessile suspension feeding ophiuroids, crinoids or brachiopods. Instead, it is dominated by infaunal bivalves, with a significant component of decapods, similar to present day South American settings. It is possible that the archaic retrograde structure of the modern community did not fully evolve until relatively recently, maybe due to factors such as further cooling and isolation of the continent leading to glaciations, which resulted in a loss of shallow shelf habitats. |
format |
Article in Journal/Newspaper |
author |
Whittle, Rowan Quaglio, Fernanda Griffiths, Huw Linse, Katrin Crame, J. Alistair |
spellingShingle |
Whittle, Rowan Quaglio, Fernanda Griffiths, Huw Linse, Katrin Crame, J. Alistair The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities |
author_facet |
Whittle, Rowan Quaglio, Fernanda Griffiths, Huw Linse, Katrin Crame, J. Alistair |
author_sort |
Whittle, Rowan |
title |
The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities |
title_short |
The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities |
title_full |
The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities |
title_fullStr |
The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities |
title_full_unstemmed |
The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities |
title_sort |
early miocene cape melville formation fossil assemblage and the evolution of modern antarctic marine communities |
publishDate |
2014 |
url |
http://nora.nerc.ac.uk/id/eprint/503542/ https://nora.nerc.ac.uk/id/eprint/503542/1/Early%20Miocene%20Cape%20Melville%20Formation%20AAM.pdf |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-57.617,-57.617,-62.033,-62.033) |
geographic |
Antarctic King George Island Seymour Seymour Island Cape Melville |
geographic_facet |
Antarctic King George Island Seymour Seymour Island Cape Melville |
genre |
Antarc* Antarctic Antarctica King George Island Seymour Island |
genre_facet |
Antarc* Antarctic Antarctica King George Island Seymour Island |
op_relation |
https://nora.nerc.ac.uk/id/eprint/503542/1/Early%20Miocene%20Cape%20Melville%20Formation%20AAM.pdf Whittle, Rowan orcid:0000-0001-6953-5829 Quaglio, Fernanda; Griffiths, Huw orcid:0000-0003-1764-223X Linse, Katrin orcid:0000-0003-3477-3047 Crame, J. Alistair orcid:0000-0002-5027-9965 . 2014 The Early Miocene Cape Melville Formation fossil assemblage and the evolution of modern Antarctic marine communities. Naturwissenschaften, 101 (1). 47-59. https://doi.org/10.1007/s00114-013-1128-0 <https://doi.org/10.1007/s00114-013-1128-0> |
op_doi |
https://doi.org/10.1007/s00114-013-1128-0 |
container_title |
Naturwissenschaften |
container_volume |
101 |
container_issue |
1 |
container_start_page |
47 |
op_container_end_page |
59 |
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1766248690790432768 |