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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Online Access: | https://doi.org/10.5061/dryad.k3h00 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::8f255c932312e41ae6fae54f24628da8 2023-05-15T13:43:37+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. 2017-01-01 https://doi.org/10.5061/dryad.k3h00 undefined unknown http://dx.doi.org/10.5061/dryad.k3h00 https://dx.doi.org/10.5061/dryad.k3h00 lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:92244 oai:easy.dans.knaw.nl:easy-dataset:92244 10.5061/dryad.k3h00 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f Life sciences medicine and health care Paso del Sapo Fauna tarsal bones Argentina Patagonia Chubut Paso del Sapo Paleogene Metatheria Australdelphia Diprotodontia Polydolopimorphia archeo geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2017 fttriple https://doi.org/10.5061/dryad.k3h00 2023-01-22T17:23:54Z 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. Lorente, Chornogubsky, Goin - Australidelphian tarsals from PatagoniaData matrix modified from Beck (2012).Lorente, Chornogubsky, Goin - Palaeontology.nexSynapomorphiesList of synapomorphies for "New tarsal remains suggest the existence of non microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia" Dataset Antarc* Antarctica Unknown Argentina Beck ENVELOPE(67.017,67.017,-71.033,-71.033) Chubut ENVELOPE(-62.533,-62.533,-76.100,-76.100) Patagonia |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Paso del Sapo Fauna tarsal bones Argentina Patagonia Chubut Paso del Sapo Paleogene Metatheria Australdelphia Diprotodontia Polydolopimorphia archeo geo |
spellingShingle |
Life sciences medicine and health care Paso del Sapo Fauna tarsal bones Argentina Patagonia Chubut Paso del Sapo Paleogene Metatheria Australdelphia Diprotodontia Polydolopimorphia archeo geo 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 Paso del Sapo Fauna tarsal bones Argentina Patagonia Chubut Paso del Sapo Paleogene Metatheria Australdelphia Diprotodontia Polydolopimorphia archeo geo |
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. Lorente, Chornogubsky, Goin - Australidelphian tarsals from PatagoniaData matrix modified from Beck (2012).Lorente, Chornogubsky, Goin - Palaeontology.nexSynapomorphiesList of synapomorphies for "New tarsal remains suggest the existence of non microbiotherian Australidelphian marsupials (Diprotodontia) in the Eocene of Patagonia" |
format |
Dataset |
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 |
2017 |
url |
https://doi.org/10.5061/dryad.k3h00 |
long_lat |
ENVELOPE(67.017,67.017,-71.033,-71.033) ENVELOPE(-62.533,-62.533,-76.100,-76.100) |
geographic |
Argentina Beck Chubut Patagonia |
geographic_facet |
Argentina Beck Chubut Patagonia |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:92244 oai:easy.dans.knaw.nl:easy-dataset:92244 10.5061/dryad.k3h00 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 re3data_____::r3d100000044 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f |
op_relation |
http://dx.doi.org/10.5061/dryad.k3h00 https://dx.doi.org/10.5061/dryad.k3h00 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.k3h00 |
_version_ |
1766191173066555392 |