The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks
The first record of one of the most common and widespread Paleogene selachians, the sandtiger shark Brachycarcharias, in the Ypresian strata of the La Meseta Formation, Seymour Island, Antarctica, is providedherein. Selachians from the early Eocene horizons of this deposit represent the southernmost...
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ftconicet:oai:ri.conicet.gov.ar:11336/101336 2023-10-09T21:45:00+02:00 The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks Marrama, Giusppe Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen application/pdf http://hdl.handle.net/11336/101336 eng eng Università degli Studi di Milano info:eu-repo/semantics/altIdentifier/doi/10.13130/2039-4942/9985 info:eu-repo/semantics/altIdentifier/url/https://riviste.unimi.it/index.php/RIPS/article/view/9985 http://hdl.handle.net/11336/101336 Marrama, Giusppe; Engelbrecht, Andrea; Mörs, Thomas; Reguero, Marcelo Alfredo; Kriwet, Jürgen; The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks; Università degli Studi di Milano; Rivista Italiana di Paleontologia e Stratigrafia; 124; 2; 3-2018; 283-288 0035-6883 2039-4942 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ Chondrichthyes Elasmobranchii Ypresian Antarctica 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/10.13130/2039-4942/9985 2023-09-24T19:12:32Z The first record of one of the most common and widespread Paleogene selachians, the sandtiger shark Brachycarcharias, in the Ypresian strata of the La Meseta Formation, Seymour Island, Antarctica, is providedherein. Selachians from the early Eocene horizons of this deposit represent the southernmost Paleogeneoccurrences in the fossil record, and are represented by isolated teeth belonging to orectolobiforms, lamniforms,carcharhiniforms, squatiniforms and pristiophoriforms. The combination of dental characters of the 49 isolatedteeth collected from the horizons TELMs 2, 4 and 5 supports their assignment to the odontaspidid Brachycarchariaslerichei (Casier, 1946), a lamniform species widely spread across the Northern Hemisphere during the early Paleogene.The unambiguous first report of this lamniform shark in the Southern Hemisphere in the Eocene of the LaMeseta Formation improves our knowledge concerning the diversity and paleobiology of the cartilaginous fishesof this deposit, and provides new insights about the biotic turnovers that involved the high trophic levels of themarine settings after the end-Cretaceous extinction and before the establishment of the modern marine ecosystems. Fil: Marrama, Giusppe. Universidad de Viena; Austria Fil: Engelbrecht, Andrea. Universidad de Viena; Austria Fil: Mörs, Thomas. Swedish Museum of Natural History; Suecia Fil: Reguero, Marcelo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina Fil: Kriwet, Jürgen. Universidad de Viena; Austria Article in Journal/Newspaper Antarc* Antarctica Seymour Island CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) 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) |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Chondrichthyes Elasmobranchii Ypresian Antarctica https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Chondrichthyes Elasmobranchii Ypresian Antarctica https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Marrama, Giusppe Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks |
topic_facet |
Chondrichthyes Elasmobranchii Ypresian Antarctica https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The first record of one of the most common and widespread Paleogene selachians, the sandtiger shark Brachycarcharias, in the Ypresian strata of the La Meseta Formation, Seymour Island, Antarctica, is providedherein. Selachians from the early Eocene horizons of this deposit represent the southernmost Paleogeneoccurrences in the fossil record, and are represented by isolated teeth belonging to orectolobiforms, lamniforms,carcharhiniforms, squatiniforms and pristiophoriforms. The combination of dental characters of the 49 isolatedteeth collected from the horizons TELMs 2, 4 and 5 supports their assignment to the odontaspidid Brachycarchariaslerichei (Casier, 1946), a lamniform species widely spread across the Northern Hemisphere during the early Paleogene.The unambiguous first report of this lamniform shark in the Southern Hemisphere in the Eocene of the LaMeseta Formation improves our knowledge concerning the diversity and paleobiology of the cartilaginous fishesof this deposit, and provides new insights about the biotic turnovers that involved the high trophic levels of themarine settings after the end-Cretaceous extinction and before the establishment of the modern marine ecosystems. Fil: Marrama, Giusppe. Universidad de Viena; Austria Fil: Engelbrecht, Andrea. Universidad de Viena; Austria Fil: Mörs, Thomas. Swedish Museum of Natural History; Suecia Fil: Reguero, Marcelo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina Fil: Kriwet, Jürgen. Universidad de Viena; Austria |
format |
Article in Journal/Newspaper |
author |
Marrama, Giusppe Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen |
author_facet |
Marrama, Giusppe Engelbrecht, Andrea Mörs, Thomas Reguero, Marcelo Alfredo Kriwet, Jürgen |
author_sort |
Marrama, Giusppe |
title |
The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks |
title_short |
The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks |
title_full |
The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks |
title_fullStr |
The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks |
title_full_unstemmed |
The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks |
title_sort |
southernmost occurrence of brachycarcharias (lamniformes, odontaspididae) from the eocene of antarctica provides new information about the paleobiogeography and paleobiology of paleogene sand tiger sharks |
publisher |
Università degli Studi di Milano |
url |
http://hdl.handle.net/11336/101336 |
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 |
Argentina Seymour Seymour Island Suecia |
geographic_facet |
Argentina Seymour Seymour Island Suecia |
genre |
Antarc* Antarctica Seymour Island |
genre_facet |
Antarc* Antarctica Seymour Island |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.13130/2039-4942/9985 info:eu-repo/semantics/altIdentifier/url/https://riviste.unimi.it/index.php/RIPS/article/view/9985 http://hdl.handle.net/11336/101336 Marrama, Giusppe; Engelbrecht, Andrea; Mörs, Thomas; Reguero, Marcelo Alfredo; Kriwet, Jürgen; The southernmost occurrence of Brachycarcharias (Lamniformes, Odontaspididae) from the Eocene of Antarctica provides new information about the paleobiogeography and paleobiology of Paleogene sand tiger sharks; Università degli Studi di Milano; Rivista Italiana di Paleontologia e Stratigrafia; 124; 2; 3-2018; 283-288 0035-6883 2039-4942 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
op_doi |
https://doi.org/10.13130/2039-4942/9985 |
_version_ |
1779315235404906496 |