A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation
Early Tertiary sediments of the Antarctic Peninsula region continue to yield a rich assemblage of well-preserved fossil dicotyledonous angiosperm wood. The wood flora under consideration is from the Collins Glacier region on Fildes Peninsula, King George Island and is derived from tuffaceous sedimen...
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ftnerc:oai:nora.nerc.ac.uk:20195 2023-05-15T13:45:12+02:00 A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation Poole, Imogen Hunt, Richard J. Cantrill, David J. 2001 http://nora.nerc.ac.uk/id/eprint/20195/ http://aob.oxfordjournals.org/content/88/1/33.full.pdf+html unknown Annals of Botany Company Poole, Imogen; Hunt, Richard J.; Cantrill, David J. 2001 A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation. Annals of Botany, 88 (1). 33-54. https://doi.org/10.1006/anbo.2001.1425 <https://doi.org/10.1006/anbo.2001.1425> Botany Publication - Article PeerReviewed 2001 ftnerc https://doi.org/10.1006/anbo.2001.1425 2023-02-04T19:32:43Z Early Tertiary sediments of the Antarctic Peninsula region continue to yield a rich assemblage of well-preserved fossil dicotyledonous angiosperm wood. The wood flora under consideration is from the Collins Glacier region on Fildes Peninsula, King George Island and is derived from tuffaceous sediments of the Middle Unit of the Fildes Formation. These deposits accumulated in a volcanic setting adjacent to a basic-intermediate stratocone. The fossil assemblage provides further evidence for the existence of cool temperate forests, similar in composition to those found today in New Zealand, Australia and, in particular, southern South America. This paper describes two conifer and five angiosperm morphotypes, four of which are new additions to the Antarctica palaeoflora records. Cupressinoxylon Goeppert, which is the dominant conifer in terms of numbers, and Podocarpoxylon Gothan represent the conifers. The angiosperm component includes two species ofNothofagoxylon and two previously undescribed wood morphotypes that exhibit greatest anatomical similarity to woods ofLuma A. Gray (Myrtaceae) and Eucryphia Cav. (Cunoniaceae). These morphotypes are described and assigned to the organ genera Myrceugenelloxylon Nishida, and Weinmannioxylon Petriella, respectively. A model based on the extant cool temperate Valdivian rainforests is proposed and ecological reconstructions based on palaeobotanical and geological evidence suggest that changes in the palaeovegetation reflect natural dynamics following volcanic disturbances.Copyright 2001 Annals of Botany Company Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Collins Glacier King George Island Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula King George Island New Zealand Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) Fildes peninsula ENVELOPE(-58.948,-58.948,-62.182,-62.182) Collins Glacier ENVELOPE(65.308,65.308,-73.829,-73.829) Annals of Botany 88 1 33 54 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Botany |
spellingShingle |
Botany Poole, Imogen Hunt, Richard J. Cantrill, David J. A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation |
topic_facet |
Botany |
description |
Early Tertiary sediments of the Antarctic Peninsula region continue to yield a rich assemblage of well-preserved fossil dicotyledonous angiosperm wood. The wood flora under consideration is from the Collins Glacier region on Fildes Peninsula, King George Island and is derived from tuffaceous sediments of the Middle Unit of the Fildes Formation. These deposits accumulated in a volcanic setting adjacent to a basic-intermediate stratocone. The fossil assemblage provides further evidence for the existence of cool temperate forests, similar in composition to those found today in New Zealand, Australia and, in particular, southern South America. This paper describes two conifer and five angiosperm morphotypes, four of which are new additions to the Antarctica palaeoflora records. Cupressinoxylon Goeppert, which is the dominant conifer in terms of numbers, and Podocarpoxylon Gothan represent the conifers. The angiosperm component includes two species ofNothofagoxylon and two previously undescribed wood morphotypes that exhibit greatest anatomical similarity to woods ofLuma A. Gray (Myrtaceae) and Eucryphia Cav. (Cunoniaceae). These morphotypes are described and assigned to the organ genera Myrceugenelloxylon Nishida, and Weinmannioxylon Petriella, respectively. A model based on the extant cool temperate Valdivian rainforests is proposed and ecological reconstructions based on palaeobotanical and geological evidence suggest that changes in the palaeovegetation reflect natural dynamics following volcanic disturbances.Copyright 2001 Annals of Botany Company |
format |
Article in Journal/Newspaper |
author |
Poole, Imogen Hunt, Richard J. Cantrill, David J. |
author_facet |
Poole, Imogen Hunt, Richard J. Cantrill, David J. |
author_sort |
Poole, Imogen |
title |
A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation |
title_short |
A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation |
title_full |
A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation |
title_fullStr |
A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation |
title_full_unstemmed |
A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation |
title_sort |
fossil wood flora from king george island: ecological implications for an antarctic eocene vegetation |
publisher |
Annals of Botany Company |
publishDate |
2001 |
url |
http://nora.nerc.ac.uk/id/eprint/20195/ http://aob.oxfordjournals.org/content/88/1/33.full.pdf+html |
long_lat |
ENVELOPE(-58.817,-58.817,-62.217,-62.217) ENVELOPE(-58.948,-58.948,-62.182,-62.182) ENVELOPE(65.308,65.308,-73.829,-73.829) |
geographic |
Antarctic The Antarctic Antarctic Peninsula King George Island New Zealand Fildes Fildes peninsula Collins Glacier |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula King George Island New Zealand Fildes Fildes peninsula Collins Glacier |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Collins Glacier King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Collins Glacier King George Island |
op_relation |
Poole, Imogen; Hunt, Richard J.; Cantrill, David J. 2001 A fossil wood flora from King George Island: ecological implications for an Antarctic Eocene vegetation. Annals of Botany, 88 (1). 33-54. https://doi.org/10.1006/anbo.2001.1425 <https://doi.org/10.1006/anbo.2001.1425> |
op_doi |
https://doi.org/10.1006/anbo.2001.1425 |
container_title |
Annals of Botany |
container_volume |
88 |
container_issue |
1 |
container_start_page |
33 |
op_container_end_page |
54 |
_version_ |
1766216990136991744 |