Anacoracid sharks from the Albian (lower cretaceous) Pawpaw shale of Texas
(2007) In Palaeontology 50(4). p.939-950- Abstract
- Recent collecting from the Pawpaw Shale in northeast Texas has yielded several hundred teeth of anacoracid sharks. The material allows for a much-needed revision of the Late Albian anacoracids from North America. The previously recognized Squalicorax sp., also referred to as S. volgensis in more recent publications, is a mix of two different species: S. priscoserratus sp. nov. and S. pawpawensis sp. nov. In addition to these two new species, a single tooth is assigned to S. aff. S. baharijensis. Our data indicate that anacoracids were considerably more diverse group in the North American Cretaceous than previously thought. We attribute much of the underestimation of diversity to vague species concepts, poor preparation techniques and the... (More)
- Recent collecting from the Pawpaw Shale in northeast Texas has yielded several hundred teeth of anacoracid sharks. The material allows for a much-needed revision of the Late Albian anacoracids from North America. The previously recognized Squalicorax sp., also referred to as S. volgensis in more recent publications, is a mix of two different species: S. priscoserratus sp. nov. and S. pawpawensis sp. nov. In addition to these two new species, a single tooth is assigned to S. aff. S. baharijensis. Our data indicate that anacoracids were considerably more diverse group in the North American Cretaceous than previously thought. We attribute much of the underestimation of diversity to vague species concepts, poor preparation techniques and the associated lack of attention to certain dental features, in particular neck morphology, root surface porosity and the root's vascularization. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/688759
- author
- Siverson, Mikael LU ; Lindgren, Johan LU and Kelley, L. Scott
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cretaceous, Albian, Pawpaw, sharks, Texas, volga, squalicorax
- in
- Palaeontology
- volume
- 50
- issue
- 4
- pages
- 939 - 950
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000248687700012
- scopus:34547403194
- ISSN
- 1475-4983
- DOI
- 10.1111/j.1475-4983.2007.00691.x
- language
- English
- LU publication?
- yes
- id
- 8b292e03-ac5c-4039-9dfe-d032a232e965 (old id 688759)
- date added to LUP
- 2016-04-01 12:04:10
- date last changed
- 2022-04-05 17:11:39
@article{8b292e03-ac5c-4039-9dfe-d032a232e965,
abstract = {{Recent collecting from the Pawpaw Shale in northeast Texas has yielded several hundred teeth of anacoracid sharks. The material allows for a much-needed revision of the Late Albian anacoracids from North America. The previously recognized Squalicorax sp., also referred to as S. volgensis in more recent publications, is a mix of two different species: S. priscoserratus sp. nov. and S. pawpawensis sp. nov. In addition to these two new species, a single tooth is assigned to S. aff. S. baharijensis. Our data indicate that anacoracids were considerably more diverse group in the North American Cretaceous than previously thought. We attribute much of the underestimation of diversity to vague species concepts, poor preparation techniques and the associated lack of attention to certain dental features, in particular neck morphology, root surface porosity and the root's vascularization.}},
author = {{Siverson, Mikael and Lindgren, Johan and Kelley, L. Scott}},
issn = {{1475-4983}},
keywords = {{cretaceous; Albian; Pawpaw; sharks; Texas; volga; squalicorax}},
language = {{eng}},
number = {{4}},
pages = {{939--950}},
publisher = {{Wiley-Blackwell}},
series = {{Palaeontology}},
title = {{Anacoracid sharks from the Albian (lower cretaceous) Pawpaw shale of Texas}},
url = {{http://dx.doi.org/10.1111/j.1475-4983.2007.00691.x}},
doi = {{10.1111/j.1475-4983.2007.00691.x}},
volume = {{50}},
year = {{2007}},
}