Revision of the early Cretaceous flora from Hope Bay, Antarctica
text The Early Cretaceous (Berriasian) Hope Bay flora is one of the most diverse assemblages from the Mesozoic of Antarctica. Collected in 1902 by the Swedish Antarctic Expedition of 1901-1903 from Hope Bay at the northern tip of the Antarctic Peninsula, and described in 1913 by T. G. Halle, it has...
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ftunivtexas:oai:repositories.lib.utexas.edu:2152/19377 2023-05-15T14:03:05+02:00 Revision of the early Cretaceous flora from Hope Bay, Antarctica Gee, Carole T. Delevoryas, Theodore, 1929- 1987-05 electronic application/pdf http://hdl.handle.net/2152/19377 eng eng http://hdl.handle.net/2152/19377 Copyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works. Hope Bay Antarctica Flora Cretaceous Berriasian Paleobotany Plants Fossil--Antarctica--Hope Bay--Classification Paleobotany--Antarctica Paleobotany--Cretaceous 1987 ftunivtexas 2020-12-23T22:21:04Z text The Early Cretaceous (Berriasian) Hope Bay flora is one of the most diverse assemblages from the Mesozoic of Antarctica. Collected in 1902 by the Swedish Antarctic Expedition of 1901-1903 from Hope Bay at the northern tip of the Antarctic Peninsula, and described in 1913 by T. G. Halle, it has served as a classic reference collection for Jurassic and Cretaceous southern hemisphere paleobotanical studies. Because the systematics of the flora were outdated by the enormous advances in our understanding of fossil plants during the last 70 years, it was in serious need of revision. This revision has reduced the number of taxa from 61 to 42 species. Newly erected species are Otozamites rowleyi, Kachchhia schopfii, Ticoa jeffersonii, and Araucaria antarctica. New combinations are Todites grahamii and Thinnfeldia salicifolia. The genera Kachchhia, Ticoa, and Weltrichia are new occurrences at Hope Bay. Represented in the flora are members of the Hepatophyta, Arthrophyta, Pteridophyta, Pteridospermophyta, Cycadophyta, Cycadeoidophyta, and Coniferophyta. Not surprisingly, when compared with other Gondwana floras, the Hope Bay flora shows the greatest similarity with other Antarctic floras. There is also a close affinity with the floras of South America and New Zealand. Taxonomic similarity between these floras is best explained by paleogeographic proximity. Plant Biology Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Antarctica The University of Texas at Austin: Texas ScholarWorks Antarctic The Antarctic Antarctic Peninsula New Zealand Hope Bay ENVELOPE(-57.038,-57.038,-63.403,-63.403) |
institution |
Open Polar |
collection |
The University of Texas at Austin: Texas ScholarWorks |
op_collection_id |
ftunivtexas |
language |
English |
topic |
Hope Bay Antarctica Flora Cretaceous Berriasian Paleobotany Plants Fossil--Antarctica--Hope Bay--Classification Paleobotany--Antarctica Paleobotany--Cretaceous |
spellingShingle |
Hope Bay Antarctica Flora Cretaceous Berriasian Paleobotany Plants Fossil--Antarctica--Hope Bay--Classification Paleobotany--Antarctica Paleobotany--Cretaceous Gee, Carole T. Revision of the early Cretaceous flora from Hope Bay, Antarctica |
topic_facet |
Hope Bay Antarctica Flora Cretaceous Berriasian Paleobotany Plants Fossil--Antarctica--Hope Bay--Classification Paleobotany--Antarctica Paleobotany--Cretaceous |
description |
text The Early Cretaceous (Berriasian) Hope Bay flora is one of the most diverse assemblages from the Mesozoic of Antarctica. Collected in 1902 by the Swedish Antarctic Expedition of 1901-1903 from Hope Bay at the northern tip of the Antarctic Peninsula, and described in 1913 by T. G. Halle, it has served as a classic reference collection for Jurassic and Cretaceous southern hemisphere paleobotanical studies. Because the systematics of the flora were outdated by the enormous advances in our understanding of fossil plants during the last 70 years, it was in serious need of revision. This revision has reduced the number of taxa from 61 to 42 species. Newly erected species are Otozamites rowleyi, Kachchhia schopfii, Ticoa jeffersonii, and Araucaria antarctica. New combinations are Todites grahamii and Thinnfeldia salicifolia. The genera Kachchhia, Ticoa, and Weltrichia are new occurrences at Hope Bay. Represented in the flora are members of the Hepatophyta, Arthrophyta, Pteridophyta, Pteridospermophyta, Cycadophyta, Cycadeoidophyta, and Coniferophyta. Not surprisingly, when compared with other Gondwana floras, the Hope Bay flora shows the greatest similarity with other Antarctic floras. There is also a close affinity with the floras of South America and New Zealand. Taxonomic similarity between these floras is best explained by paleogeographic proximity. Plant Biology |
author2 |
Delevoryas, Theodore, 1929- |
author |
Gee, Carole T. |
author_facet |
Gee, Carole T. |
author_sort |
Gee, Carole T. |
title |
Revision of the early Cretaceous flora from Hope Bay, Antarctica |
title_short |
Revision of the early Cretaceous flora from Hope Bay, Antarctica |
title_full |
Revision of the early Cretaceous flora from Hope Bay, Antarctica |
title_fullStr |
Revision of the early Cretaceous flora from Hope Bay, Antarctica |
title_full_unstemmed |
Revision of the early Cretaceous flora from Hope Bay, Antarctica |
title_sort |
revision of the early cretaceous flora from hope bay, antarctica |
publishDate |
1987 |
url |
http://hdl.handle.net/2152/19377 |
long_lat |
ENVELOPE(-57.038,-57.038,-63.403,-63.403) |
geographic |
Antarctic The Antarctic Antarctic Peninsula New Zealand Hope Bay |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula New Zealand Hope Bay |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_relation |
http://hdl.handle.net/2152/19377 |
op_rights |
Copyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works. |
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1766273618457657344 |