Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica
Abstract: Worm tubes, which exhibit the replaced tube‐lining membrane, have been collected from the lowermost Lower Eocene Acantilados Allomember of the La Meseta Formation, Seymour Island, Antarctica. The discovery represents the oldest examples of preservation of the tube‐lining membrane of tube‐d...
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crwiley:10.1111/j.1475-4983.2004.00440.x 2024-09-15T17:47:02+00:00 Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica SCHWEITZER, CARRIE E. FELDMANN, RODNEY M. MARENSSI, SERGIO WAUGH, DAVID A. 2005 http://dx.doi.org/10.1111/j.1475-4983.2004.00440.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1475-4983.2004.00440.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4983.2004.00440.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Palaeontology volume 48, issue 1, page 1-13 ISSN 0031-0239 1475-4983 journal-article 2005 crwiley https://doi.org/10.1111/j.1475-4983.2004.00440.x 2024-07-25T04:19:28Z Abstract: Worm tubes, which exhibit the replaced tube‐lining membrane, have been collected from the lowermost Lower Eocene Acantilados Allomember of the La Meseta Formation, Seymour Island, Antarctica. The discovery represents the oldest examples of preservation of the tube‐lining membrane of tube‐dwelling Polychaeta in the fossil record. A new genus and species, Caprascolex antarcticus , are described. The specimens are preserved as thin coatings of amorphous iron oxide on the inner surface of the moulds interpreted to be the replaced tube‐lining membrane. Examination of the rarely described tube‐lining mucosoid membrane in extant polychaetes shows that the fossils are nearly identical in morphology and scale to extant forms. These fossils record in remarkable detail the morphology of the tube‐lining membrane, which appears to be composed of growth bands formed as the worm constructed the tube. The tube‐lining is believed to have been originally preserved as pyrite, with subsequent oxidation to iron oxide. The tube‐lining membrane of worm tubes possibly is known from only one other fossil occurrence. Article in Journal/Newspaper Antarc* Antarctica antarcticus Seymour Island Wiley Online Library Palaeontology 48 1 1 13 |
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Wiley Online Library |
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language |
English |
description |
Abstract: Worm tubes, which exhibit the replaced tube‐lining membrane, have been collected from the lowermost Lower Eocene Acantilados Allomember of the La Meseta Formation, Seymour Island, Antarctica. The discovery represents the oldest examples of preservation of the tube‐lining membrane of tube‐dwelling Polychaeta in the fossil record. A new genus and species, Caprascolex antarcticus , are described. The specimens are preserved as thin coatings of amorphous iron oxide on the inner surface of the moulds interpreted to be the replaced tube‐lining membrane. Examination of the rarely described tube‐lining mucosoid membrane in extant polychaetes shows that the fossils are nearly identical in morphology and scale to extant forms. These fossils record in remarkable detail the morphology of the tube‐lining membrane, which appears to be composed of growth bands formed as the worm constructed the tube. The tube‐lining is believed to have been originally preserved as pyrite, with subsequent oxidation to iron oxide. The tube‐lining membrane of worm tubes possibly is known from only one other fossil occurrence. |
format |
Article in Journal/Newspaper |
author |
SCHWEITZER, CARRIE E. FELDMANN, RODNEY M. MARENSSI, SERGIO WAUGH, DAVID A. |
spellingShingle |
SCHWEITZER, CARRIE E. FELDMANN, RODNEY M. MARENSSI, SERGIO WAUGH, DAVID A. Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica |
author_facet |
SCHWEITZER, CARRIE E. FELDMANN, RODNEY M. MARENSSI, SERGIO WAUGH, DAVID A. |
author_sort |
SCHWEITZER, CARRIE E. |
title |
Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica |
title_short |
Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica |
title_full |
Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica |
title_fullStr |
Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica |
title_full_unstemmed |
Remarkably preserved annelid worms from the La Meseta Formation (Eocene), Seymour Island, Antarctica |
title_sort |
remarkably preserved annelid worms from the la meseta formation (eocene), seymour island, antarctica |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1111/j.1475-4983.2004.00440.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1475-4983.2004.00440.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4983.2004.00440.x |
genre |
Antarc* Antarctica antarcticus Seymour Island |
genre_facet |
Antarc* Antarctica antarcticus Seymour Island |
op_source |
Palaeontology volume 48, issue 1, page 1-13 ISSN 0031-0239 1475-4983 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1475-4983.2004.00440.x |
container_title |
Palaeontology |
container_volume |
48 |
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1 |
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1 |
op_container_end_page |
13 |
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1810495563654758400 |