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dc.contributor.author
dos Santos, Rodolfo Otávio  
dc.contributor.author
Riff, Douglas  
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Rodriguez Amenabar, Cecilia  
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Rodriguez Cabral Ramos, Renato  
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Fernandes Rodrigues, Igor  
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Scheffler, Sandro Marcelo  
dc.contributor.author
Araújo Carvalho, Marcelo  
dc.date.available
2023-07-12T12:21:15Z  
dc.date.issued
2022-11  
dc.identifier.citation
dos Santos, Rodolfo Otávio; Riff, Douglas; Rodriguez Amenabar, Cecilia; Rodriguez Cabral Ramos, Renato; Fernandes Rodrigues, Igor; et al.; New records of hexanchiform sharks (Elasmobranchii: Neoselachii) from the Late Cretaceous of Antarctica with comments on previous reports and described taxa; Royal Society of New Zealand; New Zealand Journal Of Geology And Geophysics; 11-2022; 1-17  
dc.identifier.issn
0028-8306  
dc.identifier.uri
http://hdl.handle.net/11336/203404  
dc.description.abstract
Sharks are virtually absent from coastal Antarctica since the Late Eocene glaciations, but this group exhibited a notable austral diversity during the Cretaceous and Paleogene. Several species have already been described from the Aptian-Eocene successions of the Larsen Basin exposed in the James Ross Island area (northern Antarctic Peninsula) and the predominantly deep-water Hexanchiformes have a record that, although still rare, has been continually increased. Four species of this group are currently known from that basin: Notidanodon pectinatus, Xampylodon dentatus, Rolfodon thompsoni, and Rolfodon tatere. Such records are especially concentrated in the Gamma Member of the Snow Hill Island Formation (or Herbert Sound Member of Santa Marta Formation), on James Ross Island. Here we described four teeth assigned to X. dentatus and one identified as R. tatere from upper Campanian sections of James Ross Island, highlighting the nomenclatural changes that led to the definition of Xampylodon and Rolfodon. Some specimens of X. dentatus presented here are considerably more complete or represent teeth of different positions than most previous records. The material assigned to R. tatere represents the oldest record of this species in the world, extending its time range by more than 10 million years.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Royal Society of New Zealand  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
HEXANCHIFORMES  
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JAMES ROSS ISLAND  
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JAMES ROSS SUB-BASIN  
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LARSEN BASIN  
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LATE CRETACEOUS SHARKS  
dc.subject.classification
Paleontología  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
New records of hexanchiform sharks (Elasmobranchii: Neoselachii) from the Late Cretaceous of Antarctica with comments on previous reports and described taxa  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-07-06T14:26:19Z  
dc.journal.pagination
1-17  
dc.journal.pais
Nueva Zelanda  
dc.description.fil
Fil: dos Santos, Rodolfo Otávio. Universidade de Sao Paulo; Brasil  
dc.description.fil
Fil: Riff, Douglas. No especifíca;  
dc.description.fil
Fil: Rodriguez Amenabar, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina  
dc.description.fil
Fil: Rodriguez Cabral Ramos, Renato. Universidade Federal do Rio de Janeiro; Brasil  
dc.description.fil
Fil: Fernandes Rodrigues, Igor. Universidade Federal do Rio de Janeiro; Brasil  
dc.description.fil
Fil: Scheffler, Sandro Marcelo. Universidade Federal do Rio de Janeiro; Brasil  
dc.description.fil
Fil: Araújo Carvalho, Marcelo. Universidade Federal do Rio de Janeiro; Brasil  
dc.journal.title
New Zealand Journal Of Geology And Geophysics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/00288306.2022.2143382