On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia
A diverse assemblage of extinct mammals of early?middle Eocene age (Ypresian?Lutetian boundary) come from the Patagonian localities of La Barda and Laguna Fría around Paso del Sapo in northwestern Chubut Province (Argentina). Metatherians are well represented, mostly by dental remains of ?Didelphimo...
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ftconicet:oai:ri.conicet.gov.ar:11336/47790 2023-10-09T21:45:44+02:00 On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia Lorente, Malena Chornogubsky Clerici, Laura Goin, Francisco Javier application/pdf http://hdl.handle.net/11336/47790 eng eng Wiley Blackwell Publishing, Inc info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/pala.12241/full info:eu-repo/semantics/altIdentifier/doi/10.1111/pala.12241 http://hdl.handle.net/11336/47790 Lorente, Malena; Chornogubsky Clerici, Laura; Goin, Francisco Javier; On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia; Wiley Blackwell Publishing, Inc; Palaeontology; 59; 4; 7-2016; 533-547 0031-0239 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Australidelphia South America Paso del Sapo Fauna Palaeogene Tarsal bones 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/10.1111/pala.12241 2023-09-24T19:09:57Z A diverse assemblage of extinct mammals of early?middle Eocene age (Ypresian?Lutetian boundary) come from the Patagonian localities of La Barda and Laguna Fría around Paso del Sapo in northwestern Chubut Province (Argentina). Metatherians are well represented, mostly by dental remains of ?Didelphimorphia?, Paucituberculata, Sparassodonta, Microbiotheria, and Polydolopimorphia. Here we analyse three calcanea and one astragalus referable to the same, indeterminate taxon, from La Barda, showing the fusion of their ectal and sustentacular facets. This facet arrangement characterizes the Australidelphia, a marsupial clade represented by Microbiotheria from South America and Antarctica, plus all Australasian lineages. Other australidelphian features shown by these tarsals include: in the calcanea, a reduced peroneal process and a tripartite cuboid facet; in the astragalus, a round, very small astragalar head in relation to the body; a convex trochlea with a half for the tibia and half, in slightly lower position, for the fibula. Their size and other anatomical features suggest that the new tarsals cannot be referred to the Microbiotheria. Phylogenetic analysis suggests that the La Barda taxon lies within the Australidelphia, and that it is either closely related or belongs to, the Diprotodontia. The existence of advanced australidelphians in Patagonia adds further evidence of the close relationship between Patagonia, Antarctica, and Australia during the Late Cretaceous ? early Palaeogene. Fil: Lorente, Malena. 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 Fil: Chornogubsky Clerici, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. ... Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Patagonia Argentino Argentina Chubut ENVELOPE(-62.533,-62.533,-76.100,-76.100) Palaeontology 59 4 533 547 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
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Australidelphia South America Paso del Sapo Fauna Palaeogene Tarsal bones https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Australidelphia South America Paso del Sapo Fauna Palaeogene Tarsal bones https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Lorente, Malena Chornogubsky Clerici, Laura Goin, Francisco Javier On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
topic_facet |
Australidelphia South America Paso del Sapo Fauna Palaeogene Tarsal bones https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
A diverse assemblage of extinct mammals of early?middle Eocene age (Ypresian?Lutetian boundary) come from the Patagonian localities of La Barda and Laguna Fría around Paso del Sapo in northwestern Chubut Province (Argentina). Metatherians are well represented, mostly by dental remains of ?Didelphimorphia?, Paucituberculata, Sparassodonta, Microbiotheria, and Polydolopimorphia. Here we analyse three calcanea and one astragalus referable to the same, indeterminate taxon, from La Barda, showing the fusion of their ectal and sustentacular facets. This facet arrangement characterizes the Australidelphia, a marsupial clade represented by Microbiotheria from South America and Antarctica, plus all Australasian lineages. Other australidelphian features shown by these tarsals include: in the calcanea, a reduced peroneal process and a tripartite cuboid facet; in the astragalus, a round, very small astragalar head in relation to the body; a convex trochlea with a half for the tibia and half, in slightly lower position, for the fibula. Their size and other anatomical features suggest that the new tarsals cannot be referred to the Microbiotheria. Phylogenetic analysis suggests that the La Barda taxon lies within the Australidelphia, and that it is either closely related or belongs to, the Diprotodontia. The existence of advanced australidelphians in Patagonia adds further evidence of the close relationship between Patagonia, Antarctica, and Australia during the Late Cretaceous ? early Palaeogene. Fil: Lorente, Malena. 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 Fil: Chornogubsky Clerici, Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. ... |
format |
Article in Journal/Newspaper |
author |
Lorente, Malena Chornogubsky Clerici, Laura Goin, Francisco Javier |
author_facet |
Lorente, Malena Chornogubsky Clerici, Laura Goin, Francisco Javier |
author_sort |
Lorente, Malena |
title |
On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_short |
On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_full |
On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_fullStr |
On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_full_unstemmed |
On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_sort |
on the existence of non-microbiotherian australidelphian marsupials (diprotodontia) in the eocene of patagonia |
publisher |
Wiley Blackwell Publishing, Inc |
url |
http://hdl.handle.net/11336/47790 |
long_lat |
ENVELOPE(-62.533,-62.533,-76.100,-76.100) |
geographic |
Patagonia Argentino Argentina Chubut |
geographic_facet |
Patagonia Argentino Argentina Chubut |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/pala.12241/full info:eu-repo/semantics/altIdentifier/doi/10.1111/pala.12241 http://hdl.handle.net/11336/47790 Lorente, Malena; Chornogubsky Clerici, Laura; Goin, Francisco Javier; On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia; Wiley Blackwell Publishing, Inc; Palaeontology; 59; 4; 7-2016; 533-547 0031-0239 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1111/pala.12241 |
container_title |
Palaeontology |
container_volume |
59 |
container_issue |
4 |
container_start_page |
533 |
op_container_end_page |
547 |
_version_ |
1779321398929391616 |