Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica
Plant megafossils collected from the previously unexplored English Coast of eastern Ellsworth Land have yielded the first Glossopteris leaves from the Antarctic Peninsula tectonic province. Collecting at Erehwon Nunatak recovered numerous spatulate leaves of consistent morphology, most likely pertai...
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Cambridge University Press (CUP)
1989
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Online Access: | http://dx.doi.org/10.1017/s0954102089000076 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102089000076 |
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crcambridgeupr:10.1017/s0954102089000076 2024-09-30T14:25:53+00:00 Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica Gee, Carole T. 1989 http://dx.doi.org/10.1017/s0954102089000076 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102089000076 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 1, issue 1, page 35-44 ISSN 0954-1020 1365-2079 journal-article 1989 crcambridgeupr https://doi.org/10.1017/s0954102089000076 2024-09-11T04:04:02Z Plant megafossils collected from the previously unexplored English Coast of eastern Ellsworth Land have yielded the first Glossopteris leaves from the Antarctic Peninsula tectonic province. Collecting at Erehwon Nunatak recovered numerous spatulate leaves of consistent morphology, most likely pertaining to one natural species, and described here as Glossopteris erehwonensis sp. nov., as well as fragments of Phyllotheca and Equisetum . The large sample size, the predominance of Glossopteris leaves, the low species diversity, and the lack of characteristic Early Permian ( Gangamopteris ) and Early Triassic ( Dicroidium, Lepidopteris, Pleuromeia ) taxa suggest a Permian, probably Late Permian, age for the Erehwon Nunatak beds. These rocks are thus significantly older than any other sedimentary rocks known from Palmer Land and Ellsworth Land. A second flora, collected from Henkle Peak, consists exclusively of the remains of Elatocladus planus , a conifer which probably dominated forests in this area during the Jurassic. The plant megafossils support correlation of the sedimentary rocks with those of the Middle–Late Jurassic Latady Formation of south-eastern Antarctic Peninsula and eastern Ellsworth Land. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Palmer Land Cambridge University Press Antarctic The Antarctic Antarctic Peninsula Palmer Land ENVELOPE(-65.000,-65.000,-71.500,-71.500) Ellsworth Land ENVELOPE(-85.000,-85.000,-75.000,-75.000) Glossopteris ENVELOPE(-113.717,-113.717,-84.733,-84.733) Latady ENVELOPE(-65.833,-65.833,-75.500,-75.500) Erehwon Nunatak ENVELOPE(-76.683,-76.683,-74.516,-74.516) Henkle Peak ENVELOPE(-75.861,-75.861,-74.664,-74.664) Antarctic Science 1 1 35 44 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Plant megafossils collected from the previously unexplored English Coast of eastern Ellsworth Land have yielded the first Glossopteris leaves from the Antarctic Peninsula tectonic province. Collecting at Erehwon Nunatak recovered numerous spatulate leaves of consistent morphology, most likely pertaining to one natural species, and described here as Glossopteris erehwonensis sp. nov., as well as fragments of Phyllotheca and Equisetum . The large sample size, the predominance of Glossopteris leaves, the low species diversity, and the lack of characteristic Early Permian ( Gangamopteris ) and Early Triassic ( Dicroidium, Lepidopteris, Pleuromeia ) taxa suggest a Permian, probably Late Permian, age for the Erehwon Nunatak beds. These rocks are thus significantly older than any other sedimentary rocks known from Palmer Land and Ellsworth Land. A second flora, collected from Henkle Peak, consists exclusively of the remains of Elatocladus planus , a conifer which probably dominated forests in this area during the Jurassic. The plant megafossils support correlation of the sedimentary rocks with those of the Middle–Late Jurassic Latady Formation of south-eastern Antarctic Peninsula and eastern Ellsworth Land. |
format |
Article in Journal/Newspaper |
author |
Gee, Carole T. |
spellingShingle |
Gee, Carole T. Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica |
author_facet |
Gee, Carole T. |
author_sort |
Gee, Carole T. |
title |
Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica |
title_short |
Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica |
title_full |
Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica |
title_fullStr |
Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica |
title_full_unstemmed |
Permian Glossopteris and Elatocladus megafossil floras from the English Coast, eastern Ellsworth Land, Antarctica |
title_sort |
permian glossopteris and elatocladus megafossil floras from the english coast, eastern ellsworth land, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1989 |
url |
http://dx.doi.org/10.1017/s0954102089000076 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102089000076 |
long_lat |
ENVELOPE(-65.000,-65.000,-71.500,-71.500) ENVELOPE(-85.000,-85.000,-75.000,-75.000) ENVELOPE(-113.717,-113.717,-84.733,-84.733) ENVELOPE(-65.833,-65.833,-75.500,-75.500) ENVELOPE(-76.683,-76.683,-74.516,-74.516) ENVELOPE(-75.861,-75.861,-74.664,-74.664) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Palmer Land Ellsworth Land Glossopteris Latady Erehwon Nunatak Henkle Peak |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Palmer Land Ellsworth Land Glossopteris Latady Erehwon Nunatak Henkle Peak |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Palmer Land |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Palmer Land |
op_source |
Antarctic Science volume 1, issue 1, page 35-44 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102089000076 |
container_title |
Antarctic Science |
container_volume |
1 |
container_issue |
1 |
container_start_page |
35 |
op_container_end_page |
44 |
_version_ |
1811646485748514816 |