Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America
Xiphactinus is one of the largest teleost fish known from the Late Cretaceous of North America, and has been found across much of the Western Interior Basin. Despite extensive Late Cretaceous marine deposits occurring in Alberta, there has previously been only two possible records of Xiphactinus fro...
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ftdoajarticles:oai:doaj.org/article:0be792a442df4df7813c5d6cc0ddf0d2 2023-05-15T15:05:00+02:00 Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America Matthew J. Vavrek Alison M. Murray Phil R. Bell 2016-02-01T00:00:00Z https://doaj.org/article/0be792a442df4df7813c5d6cc0ddf0d2 EN eng University of Alberta Libraries https://journals-clone.library.ualberta.ca/vamp/index.php/VAMP/article/view/25447 https://doaj.org/toc/2292-1389 2292-1389 https://doaj.org/article/0be792a442df4df7813c5d6cc0ddf0d2 Vertebrate Anatomy, Morphology, Palaeontology, Vol 1 (2016) Ichthyodectiformes Late Cretaceous marine Teleostei Western Interior Basin Paleontology QE701-760 Zoology QL1-991 article 2016 ftdoajarticles 2023-01-29T01:26:53Z Xiphactinus is one of the largest teleost fish known from the Late Cretaceous of North America, and has been found across much of the Western Interior Basin. Despite extensive Late Cretaceous marine deposits occurring in Alberta, there has previously been only two possible records of Xiphactinus from the province, neither of which has been diagnosable to the species level. We describe here a portion of the lower jaws, including teeth, of Xiphactinus audax from northeast of Grande Prairie, Alberta. The fossil has large, thecodont teeth that are circular in cross section and lack any carinae, and are highly variable in their overall size. This fossil is the first diagnostic material of X. audax from Alberta, and extends the range of the species by over a thousand kilometres. During the Late Cretaceous, the area the fossil was found in was near the Arctic Circle, and represents an important datapoint within the poorly known, northern portion of the Western Interior Basin. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Canada |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ichthyodectiformes Late Cretaceous marine Teleostei Western Interior Basin Paleontology QE701-760 Zoology QL1-991 |
spellingShingle |
Ichthyodectiformes Late Cretaceous marine Teleostei Western Interior Basin Paleontology QE701-760 Zoology QL1-991 Matthew J. Vavrek Alison M. Murray Phil R. Bell Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America |
topic_facet |
Ichthyodectiformes Late Cretaceous marine Teleostei Western Interior Basin Paleontology QE701-760 Zoology QL1-991 |
description |
Xiphactinus is one of the largest teleost fish known from the Late Cretaceous of North America, and has been found across much of the Western Interior Basin. Despite extensive Late Cretaceous marine deposits occurring in Alberta, there has previously been only two possible records of Xiphactinus from the province, neither of which has been diagnosable to the species level. We describe here a portion of the lower jaws, including teeth, of Xiphactinus audax from northeast of Grande Prairie, Alberta. The fossil has large, thecodont teeth that are circular in cross section and lack any carinae, and are highly variable in their overall size. This fossil is the first diagnostic material of X. audax from Alberta, and extends the range of the species by over a thousand kilometres. During the Late Cretaceous, the area the fossil was found in was near the Arctic Circle, and represents an important datapoint within the poorly known, northern portion of the Western Interior Basin. |
format |
Article in Journal/Newspaper |
author |
Matthew J. Vavrek Alison M. Murray Phil R. Bell |
author_facet |
Matthew J. Vavrek Alison M. Murray Phil R. Bell |
author_sort |
Matthew J. Vavrek |
title |
Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America |
title_short |
Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America |
title_full |
Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America |
title_fullStr |
Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America |
title_full_unstemmed |
Xiphactinus audax Leidy 1870 from the Puskwaskau Formation (Santonian to Campanian) of northwestern Alberta, Canada and the distribution of Xiphactinus in North America |
title_sort |
xiphactinus audax leidy 1870 from the puskwaskau formation (santonian to campanian) of northwestern alberta, canada and the distribution of xiphactinus in north america |
publisher |
University of Alberta Libraries |
publishDate |
2016 |
url |
https://doaj.org/article/0be792a442df4df7813c5d6cc0ddf0d2 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Vertebrate Anatomy, Morphology, Palaeontology, Vol 1 (2016) |
op_relation |
https://journals-clone.library.ualberta.ca/vamp/index.php/VAMP/article/view/25447 https://doaj.org/toc/2292-1389 2292-1389 https://doaj.org/article/0be792a442df4df7813c5d6cc0ddf0d2 |
_version_ |
1766336768314966016 |