The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution
The first occurrence of the lamniform Cardabiodon ricki is reported from the late Cenomanian of Alberta, Canada. Previously, this taxon was described from Australia and Europe and has been hypothesized in the published literature as having an antitropical distribution. Whereas the occurrence of C. r...
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ftbioone:10.1080/02724631003758052 2024-06-02T08:10:01+00:00 The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution Todd D. Cook Mark V. H. Wilson Michael G. Newbrey Todd D. Cook Mark V. H. Wilson Michael G. Newbrey world 2010-05-01 text/HTML https://doi.org/10.1080/02724631003758052 en eng The Society of Vertebrate Paleontology doi:10.1080/02724631003758052 All rights reserved. https://doi.org/10.1080/02724631003758052 Text 2010 ftbioone https://doi.org/10.1080/02724631003758052 2024-05-07T00:50:56Z The first occurrence of the lamniform Cardabiodon ricki is reported from the late Cenomanian of Alberta, Canada. Previously, this taxon was described from Australia and Europe and has been hypothesized in the published literature as having an antitropical distribution. Whereas the occurrence of C. ricki in Alberta seemingly supports this hypothesis, no formal methodology exists to determine if Cardabiodon had an antitropical distribution because sampling for Cenomanian fossil elasmobranchs in the tropics is poor. We offer a novel methodology to test the purported hypothesis of an antitropical distribution for Cardabiodon by examining three paleoecological aspects. We compare the range of sea surface temperatures (SST) and paleolatitudinal ranges of Cardabiodon localities to those of the extant antitropical shark, Lamna nasus, because Cardabiodon should exhibit a similar magnitude of thermal and paleolatitudinal ranges to those of L. nasus. Furthermore, the paleodistribution of Cardabiodon localities should shift with climate change. Cardabiodon is concluded to have an antitropical distribution because (1) the SST range for Cardabiodon was only slightly greater (by 1.7°C) than that recorded for L. nasus; (2) the difference in paleolatitude range for Cardabiodon was 10° latitude less than the modern range for L. nasus; and (3) the paleolatitudes of Cardabiodon localities are positively correlated with global temperature to indicate that, during warm periods, Cardabiodon was found at higher paleolatitudes in both hemispheres, but it was found at warmer, lower latitudes during cooler periods. Text Lamna nasus BioOne Online Journals Canada Journal of Vertebrate Paleontology 30 3 643 649 |
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English |
description |
The first occurrence of the lamniform Cardabiodon ricki is reported from the late Cenomanian of Alberta, Canada. Previously, this taxon was described from Australia and Europe and has been hypothesized in the published literature as having an antitropical distribution. Whereas the occurrence of C. ricki in Alberta seemingly supports this hypothesis, no formal methodology exists to determine if Cardabiodon had an antitropical distribution because sampling for Cenomanian fossil elasmobranchs in the tropics is poor. We offer a novel methodology to test the purported hypothesis of an antitropical distribution for Cardabiodon by examining three paleoecological aspects. We compare the range of sea surface temperatures (SST) and paleolatitudinal ranges of Cardabiodon localities to those of the extant antitropical shark, Lamna nasus, because Cardabiodon should exhibit a similar magnitude of thermal and paleolatitudinal ranges to those of L. nasus. Furthermore, the paleodistribution of Cardabiodon localities should shift with climate change. Cardabiodon is concluded to have an antitropical distribution because (1) the SST range for Cardabiodon was only slightly greater (by 1.7°C) than that recorded for L. nasus; (2) the difference in paleolatitude range for Cardabiodon was 10° latitude less than the modern range for L. nasus; and (3) the paleolatitudes of Cardabiodon localities are positively correlated with global temperature to indicate that, during warm periods, Cardabiodon was found at higher paleolatitudes in both hemispheres, but it was found at warmer, lower latitudes during cooler periods. |
author2 |
Todd D. Cook Mark V. H. Wilson Michael G. Newbrey |
format |
Text |
author |
Todd D. Cook Mark V. H. Wilson Michael G. Newbrey |
spellingShingle |
Todd D. Cook Mark V. H. Wilson Michael G. Newbrey The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution |
author_facet |
Todd D. Cook Mark V. H. Wilson Michael G. Newbrey |
author_sort |
Todd D. Cook |
title |
The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution |
title_short |
The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution |
title_full |
The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution |
title_fullStr |
The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution |
title_full_unstemmed |
The First Record of the Large Cretaceous Lamniform Shark, Cardabiodon ricki, from North America and a New Empirical Test for Its Presumed Antitropical Distribution |
title_sort |
first record of the large cretaceous lamniform shark, cardabiodon ricki, from north america and a new empirical test for its presumed antitropical distribution |
publisher |
The Society of Vertebrate Paleontology |
publishDate |
2010 |
url |
https://doi.org/10.1080/02724631003758052 |
op_coverage |
world |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Lamna nasus |
genre_facet |
Lamna nasus |
op_source |
https://doi.org/10.1080/02724631003758052 |
op_relation |
doi:10.1080/02724631003758052 |
op_rights |
All rights reserved. |
op_doi |
https://doi.org/10.1080/02724631003758052 |
container_title |
Journal of Vertebrate Paleontology |
container_volume |
30 |
container_issue |
3 |
container_start_page |
643 |
op_container_end_page |
649 |
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1800755820045008896 |