Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica
Eocene deposits of the famous La Meseta Formation of Seymour Island, Antarctic Peninsula, yielded the most diverse Paleogene fossil elasmobranch association of the Southern Hemisphere. In this assemblage, sharks clearly dominate the fauna, whereas batoids are very rare components. Herein, we describ...
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ftconicet:oai:ri.conicet.gov.ar:11336/94645 2023-10-09T21:45:10+02:00 Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen application/pdf http://hdl.handle.net/11336/94645 eng eng Taylor & Francis info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/08912963.2017.1417403 info:eu-repo/semantics/altIdentifier/doi/10.1080/08912963.2017.1417403 http://hdl.handle.net/11336/94645 Engelbrecht, Andrea; Mörs, Thomas; Reguero, Marcelo Alfredo; Kriwet, Jürgen; Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica; Taylor & Francis; Historical Biology; 31; 8; 9-2019; 1028-1044 0891-2963 1029-2381 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ ANTARCTIC PENINSULA BATOIDS PALEOGENE SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1080/08912963.2017.1417403 2023-09-24T18:41:51Z Eocene deposits of the famous La Meseta Formation of Seymour Island, Antarctic Peninsula, yielded the most diverse Paleogene fossil elasmobranch association of the Southern Hemisphere. In this assemblage, sharks clearly dominate the fauna, whereas batoids are very rare components. Herein, we describe two new taxa of cold water tolerant skates, Marambioraja leiostemma gen. et sp. nov., and Mesetaraja maleficapelli gen. et sp. nov., two new species of the genus Raja, Raja amphitrita sp. nov. and Raja manitaria sp. nov., as well as remains of warm water adapted myliobatiforms. It is, however, not possible to unambiguously assign these remains either to Myliobatidae or Rhinopteridae, or to any specific genus. Previously reported remains of Raja/Bathyraja sp. are assigned to the new described species Raja manitaria sp. nov. The biogeographic distribution of extant and extinct rays and skates clearly shows that both groups are more widely distributed today than in the past, and additionally seem to have been more diverse in the Northern than the Southern Hemisphere. The occurrence, albeit rare of isolated teeth of skates (Rajidae) and rays (Myliobatidae) in the La Meseta Formation representes a minimum age constraint for their first appearance in the Southern Ocean. Fil: Engelbrecht, Andrea. Universidad de Viena. Departamento de Paleontología; Austria Fil: Mörs, Thomas. Museo Sueco de Historia Natural. Departamento de Paleobiología; Suecia Fil: Reguero, Marcelo Alfredo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Kriwet, Jürgen. Universidad de Viena. Departamento de Paleontología; Austria Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island Southern Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Southern Ocean Antarctic Peninsula Argentina Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Suecia ENVELOPE(-62.617,-62.617,-66.733,-66.733) Historical Biology 31 8 1028 1044 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTIC PENINSULA BATOIDS PALEOGENE SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTIC PENINSULA BATOIDS PALEOGENE SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica |
topic_facet |
ANTARCTIC PENINSULA BATOIDS PALEOGENE SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Eocene deposits of the famous La Meseta Formation of Seymour Island, Antarctic Peninsula, yielded the most diverse Paleogene fossil elasmobranch association of the Southern Hemisphere. In this assemblage, sharks clearly dominate the fauna, whereas batoids are very rare components. Herein, we describe two new taxa of cold water tolerant skates, Marambioraja leiostemma gen. et sp. nov., and Mesetaraja maleficapelli gen. et sp. nov., two new species of the genus Raja, Raja amphitrita sp. nov. and Raja manitaria sp. nov., as well as remains of warm water adapted myliobatiforms. It is, however, not possible to unambiguously assign these remains either to Myliobatidae or Rhinopteridae, or to any specific genus. Previously reported remains of Raja/Bathyraja sp. are assigned to the new described species Raja manitaria sp. nov. The biogeographic distribution of extant and extinct rays and skates clearly shows that both groups are more widely distributed today than in the past, and additionally seem to have been more diverse in the Northern than the Southern Hemisphere. The occurrence, albeit rare of isolated teeth of skates (Rajidae) and rays (Myliobatidae) in the La Meseta Formation representes a minimum age constraint for their first appearance in the Southern Ocean. Fil: Engelbrecht, Andrea. Universidad de Viena. Departamento de Paleontología; Austria Fil: Mörs, Thomas. Museo Sueco de Historia Natural. Departamento de Paleobiología; Suecia Fil: Reguero, Marcelo Alfredo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Kriwet, Jürgen. Universidad de Viena. Departamento de Paleontología; Austria |
format |
Article in Journal/Newspaper |
author |
Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen |
author_facet |
Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen |
author_sort |
Engelbrecht, Andrea |
title |
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica |
title_short |
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica |
title_full |
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica |
title_fullStr |
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica |
title_full_unstemmed |
Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica |
title_sort |
skates and rays (elasmobranchii, batomorphii) from the eocene la meseta and submeseta formations, seymour island, antarctica |
publisher |
Taylor & Francis |
url |
http://hdl.handle.net/11336/94645 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-62.617,-62.617,-66.733,-66.733) |
geographic |
Antarctic Southern Ocean Antarctic Peninsula Argentina Seymour Seymour Island Suecia |
geographic_facet |
Antarctic Southern Ocean Antarctic Peninsula Argentina Seymour Seymour Island Suecia |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/08912963.2017.1417403 info:eu-repo/semantics/altIdentifier/doi/10.1080/08912963.2017.1417403 http://hdl.handle.net/11336/94645 Engelbrecht, Andrea; Mörs, Thomas; Reguero, Marcelo Alfredo; Kriwet, Jürgen; Skates and rays (Elasmobranchii, Batomorphii) from the Eocene La Meseta and Submeseta formations, Seymour Island, Antarctica; Taylor & Francis; Historical Biology; 31; 8; 9-2019; 1028-1044 0891-2963 1029-2381 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.1080/08912963.2017.1417403 |
container_title |
Historical Biology |
container_volume |
31 |
container_issue |
8 |
container_start_page |
1028 |
op_container_end_page |
1044 |
_version_ |
1779316338203820032 |