Journal article
A new large-bodied species of Bothriolepis (Antiarchi) from the Upper Devonian of Ellesmere Island, Nunavut, Canada
Journal of vertebrate paleontology, v 36(6), pe1221833
Nov 2016
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
New material from the Upper Devonian (Frasnian) Nordstrand Point Formation of Ellesmere Island, Nunavut, Canada, represents the largest known species of antiarch and the first described from the Nordstrand Point Formation. Bothriolepis rex, sp. nov., is additionally remarkable for the thickness and compactness of its dermal skeletal plates. The new species is diagnosed by a preorbital recess with a horizontal rostral margin; the presence of a wide unornamented border surrounding the infraorbital sensory line; central sensory lines that meet the margin of the nuchal close to the lateral corners; a supraotic thickening that does not extend caudal to a transverse crista of the nuchal; and a tall lateral lamina of the anterior dorsolateral. The thick and compact armor of Bothriolepis rex, sp. nov., recalls that of the co-occurring Perscheia pulla and gives occasion to a physical and ecological review of dermal skeletal mass and density in large-bodied, bottom-dwelling organisms in nonmarine ecosystems during the Late Devonian.
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Details
- Title
- A new large-bodied species of Bothriolepis (Antiarchi) from the Upper Devonian of Ellesmere Island, Nunavut, Canada
- Creators
- Jason P. Downs - Academy of Natural Sciences of Drexel UniversityEdward B. Daeschler - Drexel UniversityValentina E. Garcia - University of California, San FranciscoNeil H. Shubin - University of Chicago
- Publication Details
- Journal of vertebrate paleontology, v 36(6), pe1221833
- Publisher
- Society of Vertebrate Paleontology (in partnership with Taylor & Francis)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES); Academy of Natural Sciences of Drexel University
- Web of Science ID
- WOS:000390355700008
- Scopus ID
- 2-s2.0-84991018045
- Other Identifier
- 991019168628004721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Paleontology