Data from: 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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ftdans:oai:easy.dans.knaw.nl:easy-dataset:92244 2023-07-02T03:30:26+02:00 Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia Lorente, Malena Chornogubsky, Laura Goin, Francisco J. 2016-05-09T14:11:46.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-qx-dy51 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92244 unknown doi:10.5061/dryad.k3h00/1 doi:10.5061/dryad.k3h00/2 doi:10.1111/pala.12241 http://nbn-resolving.org/urn:nbn:nl:ui:13-qx-dy51 doi:10.5061/dryad.k3h00 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92244 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2016 ftdans https://doi.org/10.5061/dryad.k3h00/110.5061/dryad.k3h00/210.1111/pala.1224110.5061/dryad.k3h00 2023-06-13T13:21:06Z 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. Other/Unknown Material Antarc* Antarctica Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Argentina Chubut ENVELOPE(-62.533,-62.533,-76.100,-76.100) Patagonia |
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Open Polar |
collection |
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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ftdans |
language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Lorente, Malena Chornogubsky, Laura Goin, Francisco J. Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
topic_facet |
Life sciences medicine and health care |
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. |
author |
Lorente, Malena Chornogubsky, Laura Goin, Francisco J. |
author_facet |
Lorente, Malena Chornogubsky, Laura Goin, Francisco J. |
author_sort |
Lorente, Malena |
title |
Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_short |
Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_full |
Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_fullStr |
Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_full_unstemmed |
Data from: On the existence of non-microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia |
title_sort |
data from: on the existence of non-microbiotherian australidelphian marsupials (diprotodontia) in the eocene of patagonia |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-qx-dy51 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92244 |
long_lat |
ENVELOPE(-62.533,-62.533,-76.100,-76.100) |
geographic |
Argentina Chubut Patagonia |
geographic_facet |
Argentina Chubut Patagonia |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
doi:10.5061/dryad.k3h00/1 doi:10.5061/dryad.k3h00/2 doi:10.1111/pala.12241 http://nbn-resolving.org/urn:nbn:nl:ui:13-qx-dy51 doi:10.5061/dryad.k3h00 https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92244 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.k3h00/110.5061/dryad.k3h00/210.1111/pala.1224110.5061/dryad.k3h00 |
_version_ |
1770274625410826240 |