A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega
Abstract: A new genus and species of Devonian tetrapod has been identified from material collected in 1947 from the southern slope of Mt. Celsius, Ymer Ø, North‐East Greenland. The specimen preserves both lower jaws, partial palate, premaxillae and maxillae, with a natural mould of parts of the shou...
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crwiley:10.1111/j.1475-4983.2011.01117.x 2024-06-02T08:05:54+00:00 A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega CLACK, JENNIFER A. AHLBERG, PER E. BLOM, HENNING FINNEY, SARAH M. 2012 http://dx.doi.org/10.1111/j.1475-4983.2011.01117.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1475-4983.2011.01117.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4983.2011.01117.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Palaeontology volume 55, issue 1, page 73-86 ISSN 0031-0239 1475-4983 journal-article 2012 crwiley https://doi.org/10.1111/j.1475-4983.2011.01117.x 2024-05-03T11:54:07Z Abstract: A new genus and species of Devonian tetrapod has been identified from material collected in 1947 from the southern slope of Mt. Celsius, Ymer Ø, North‐East Greenland. The specimen preserves both lower jaws, partial palate, premaxillae and maxillae, with a natural mould of parts of the shoulder girdle. The new taxon, Ymeria denticulata , shows differences in dentition, skull ornament and lateral line expression from both Acanthostega and Ichthyostega , but it shows a closer resemblance to the latter. A cladistic analysis not only suggests that Ymeria lies adjacent to Ichthyostega on the tetrapod stem, but also reveals substantial topological instability. As the third genus and the fifth species of tetrapod identified from North‐East Greenland, it demonstrates the high diversity of Devonian tetrapods in that region. Article in Journal/Newspaper East Greenland Greenland Wiley Online Library Greenland Ymer Ø ENVELOPE(-24.333,-24.333,73.150,73.150) Palaeontology 55 1 73 86 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract: A new genus and species of Devonian tetrapod has been identified from material collected in 1947 from the southern slope of Mt. Celsius, Ymer Ø, North‐East Greenland. The specimen preserves both lower jaws, partial palate, premaxillae and maxillae, with a natural mould of parts of the shoulder girdle. The new taxon, Ymeria denticulata , shows differences in dentition, skull ornament and lateral line expression from both Acanthostega and Ichthyostega , but it shows a closer resemblance to the latter. A cladistic analysis not only suggests that Ymeria lies adjacent to Ichthyostega on the tetrapod stem, but also reveals substantial topological instability. As the third genus and the fifth species of tetrapod identified from North‐East Greenland, it demonstrates the high diversity of Devonian tetrapods in that region. |
format |
Article in Journal/Newspaper |
author |
CLACK, JENNIFER A. AHLBERG, PER E. BLOM, HENNING FINNEY, SARAH M. |
spellingShingle |
CLACK, JENNIFER A. AHLBERG, PER E. BLOM, HENNING FINNEY, SARAH M. A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega |
author_facet |
CLACK, JENNIFER A. AHLBERG, PER E. BLOM, HENNING FINNEY, SARAH M. |
author_sort |
CLACK, JENNIFER A. |
title |
A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega |
title_short |
A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega |
title_full |
A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega |
title_fullStr |
A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega |
title_full_unstemmed |
A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega |
title_sort |
new genus of devonian tetrapod from north‐east greenland, with new information on the lower jaw of ichthyostega |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1475-4983.2011.01117.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1475-4983.2011.01117.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1475-4983.2011.01117.x |
long_lat |
ENVELOPE(-24.333,-24.333,73.150,73.150) |
geographic |
Greenland Ymer Ø |
geographic_facet |
Greenland Ymer Ø |
genre |
East Greenland Greenland |
genre_facet |
East Greenland Greenland |
op_source |
Palaeontology volume 55, issue 1, page 73-86 ISSN 0031-0239 1475-4983 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1475-4983.2011.01117.x |
container_title |
Palaeontology |
container_volume |
55 |
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1 |
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73 |
op_container_end_page |
86 |
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1800750789115772928 |