A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica
Abstract We describe a new chimaeriform fish, Callorhinchus torresi sp. nov., from the uppermost Cretaceous (late Maastrichtian) of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica. The material shows it is distinct from currently known fossil and extant species of the ge...
Published in: | Antarctic Science |
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Cambridge University Press (CUP)
2012
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Online Access: | http://dx.doi.org/10.1017/s095410201200079x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201200079X |
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crcambridgeupr:10.1017/s095410201200079x 2024-03-03T08:37:59+00:00 A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica Otero, Rodrigo A. Rubilar-Rogers, David Yury-Yañez, Roberto E. Vargas, Alexander O. Gutstein, Carolina S. Mourgues, Francisco Amaro Robert, Emmanuel 2012 http://dx.doi.org/10.1017/s095410201200079x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201200079X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 25, issue 1, page 99-106 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2012 crcambridgeupr https://doi.org/10.1017/s095410201200079x 2024-02-08T08:27:11Z Abstract We describe a new chimaeriform fish, Callorhinchus torresi sp. nov., from the uppermost Cretaceous (late Maastrichtian) of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica. The material shows it is distinct from currently known fossil and extant species of the genus, whereas the outline of the tritors (abrasive surfaces of each dental plate) shows an intermediate morphology between earlier records from the Cenomanian of New Zealand and those from the Eocene of Isla Marambio. This suggests an evolutionary trend in tritor morphology in the lineage leading to modern callorhynchids, during the Late Cretaceous-Palaeogene interval. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Seymour Island Cambridge University Press New Zealand Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) isla Marambio ENVELOPE(-56.635,-56.635,-64.239,-64.239) Antarctic Science 25 1 99 106 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Otero, Rodrigo A. Rubilar-Rogers, David Yury-Yañez, Roberto E. Vargas, Alexander O. Gutstein, Carolina S. Mourgues, Francisco Amaro Robert, Emmanuel A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract We describe a new chimaeriform fish, Callorhinchus torresi sp. nov., from the uppermost Cretaceous (late Maastrichtian) of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica. The material shows it is distinct from currently known fossil and extant species of the genus, whereas the outline of the tritors (abrasive surfaces of each dental plate) shows an intermediate morphology between earlier records from the Cenomanian of New Zealand and those from the Eocene of Isla Marambio. This suggests an evolutionary trend in tritor morphology in the lineage leading to modern callorhynchids, during the Late Cretaceous-Palaeogene interval. |
format |
Article in Journal/Newspaper |
author |
Otero, Rodrigo A. Rubilar-Rogers, David Yury-Yañez, Roberto E. Vargas, Alexander O. Gutstein, Carolina S. Mourgues, Francisco Amaro Robert, Emmanuel |
author_facet |
Otero, Rodrigo A. Rubilar-Rogers, David Yury-Yañez, Roberto E. Vargas, Alexander O. Gutstein, Carolina S. Mourgues, Francisco Amaro Robert, Emmanuel |
author_sort |
Otero, Rodrigo A. |
title |
A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica |
title_short |
A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica |
title_full |
A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica |
title_fullStr |
A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica |
title_full_unstemmed |
A new species of chimaeriform (Chondrichthyes, Holocephali) from the uppermost Cretaceous of the López de Bertodano Formation, Isla Marambio (Seymour Island), Antarctica |
title_sort |
new species of chimaeriform (chondrichthyes, holocephali) from the uppermost cretaceous of the lópez de bertodano formation, isla marambio (seymour island), antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s095410201200079x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410201200079X |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.635,-56.635,-64.239,-64.239) |
geographic |
New Zealand Seymour Seymour Island Marambio isla Marambio |
geographic_facet |
New Zealand Seymour Seymour Island Marambio isla Marambio |
genre |
Antarc* Antarctic Science Antarctica Seymour Island |
genre_facet |
Antarc* Antarctic Science Antarctica Seymour Island |
op_source |
Antarctic Science volume 25, issue 1, page 99-106 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410201200079x |
container_title |
Antarctic Science |
container_volume |
25 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
106 |
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1792503379951353856 |