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dc.contributor.author
Engelbrecht, Andrea
dc.contributor.author
Mörs, Thomas
dc.contributor.author
Reguero, Marcelo Alfredo
dc.contributor.author
Kriwet, Jürgen
dc.date.available
2018-06-13T21:14:43Z
dc.date.issued
2016-12
dc.identifier.citation
Engelbrecht, Andrea; Mörs, Thomas; Reguero, Marcelo Alfredo; Kriwet, Jürgen; Revision of Eocene Antarctic carpet sharks (Elasmobranchii, Orectolobiformes) from Seymour Island, Antarctic Peninsula; Cambridge University Press; Journal of Systematic Palaeontology; 15; 12; 12-2016; 969-990
dc.identifier.issn
1477-2019
dc.identifier.uri
http://hdl.handle.net/11336/48586
dc.description.abstract
The highly fossiliferous Eocene deposits of the Antarctic Peninsula are among the most productive sites for fossil remains in the Southern Hemisphere and offer rare insights into high-latitude faunas during the Palaeogene. Chondrichthyans, which are represented by abundant isolated remains, seemingly dominate the marine assemblages. Eocene Antarctic sawsharks have only been known from few isolated rostral spines up to now, that were assigned to Pristiophorus lanceolatus. Here, we present the first oral teeth of a sawshark from the Eocene of Seymour Island and a re-evaluation of previously described Pristiophorus remains from Gondwana consisting exclusively of rostral spines. The holotype of Pristiophorus lanceolatus represents a single, abraded and insufficiently illustrated spine from the Oligocene of New Zealand. All other Cenozoic rostral spines assigned to this species are morphologically very indistinct and closely resemble those of living taxa. Consequently, we regard this species as dubious and introduce a new species, Pristiophorus laevis, based on oral teeth. The combination of dental characteristics of the new species makes it unique compared to all other described species based on oral teeth. Rostral spines from the Eocene of Seymour Island are assigned to this new species whereas those from other Cenozoic Gondwana localities remain ambiguous.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Cambridge University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Chondrichthyes
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Hemiscyllidae
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La Meseta Formation
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Orectolobidae
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Palaeogene
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Southern Ocean
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Meteorología y Ciencias Atmosféricas
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Revision of Eocene Antarctic carpet sharks (Elasmobranchii, Orectolobiformes) from Seymour Island, Antarctic Peninsula
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-13T14:16:12Z
dc.journal.volume
15
dc.journal.number
12
dc.journal.pagination
969-990
dc.journal.pais
Reino Unido
dc.journal.ciudad
Cambridge
dc.description.fil
Fil: Engelbrecht, Andrea. Universidad de Viena; Austria
dc.description.fil
Fil: Mörs, Thomas. Swedish Museum of Natural History; Suecia
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Fil: Reguero, Marcelo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina
dc.description.fil
Fil: Kriwet, Jürgen. Universidad de Viena; Austria
dc.journal.title
Journal of Systematic Palaeontology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1080/14772019.2016.1266048
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/14772019.2016.1266048
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