Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island
Fil: Talevi, Marianella. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Acosta Hospitaleche, Carolina. Universidad Nacional de La Plata. CONICET, División Paleontología Vertebrados, Museo de La Plata. Facultad de Ciencias Natural...
Main Authors: | , , , |
---|---|
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | http://rid.unrn.edu.ar/handle/20.500.12049/6706 https://hdl.handle.net/20.500.12049/6706 https://www.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdf |
id |
ftunivnrionegro:oai:rid.unrn.edu.ar:20.500.12049/6706 |
---|---|
record_format |
openpolar |
spelling |
ftunivnrionegro:oai:rid.unrn.edu.ar:20.500.12049/6706 2023-05-15T13:44:25+02:00 Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island Talevi, Marianella Acosta Hospitaleche, Carolina Ison, Juan Ignacio Garat, Luis 2020-11-26 application/pdf http://rid.unrn.edu.ar/handle/20.500.12049/6706 https://hdl.handle.net/20.500.12049/6706 https://www.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdf en eng https://www.apaleontologica.org.ar/rvcapa/?fbclid=IwAR3l4nT4wHqBgy6q3hqVWiNbLBGnxCihFx_lWPKYQvOwGAtgLrSq_K2J2i4 1° Reunión Virtual de la Asociación Paleontológica Argentina. https://www.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdf http://rid.unrn.edu.ar/handle/20.500.12049/6706 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA Ciencias Exactas y Naturales Bone histology BIRD Antártida 2020 ftunivnrionegro https://doi.org/20.500.12049/6706 2023-01-24T14:46:41Z Fil: Talevi, Marianella. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Acosta Hospitaleche, Carolina. Universidad Nacional de La Plata. CONICET, División Paleontología Vertebrados, Museo de La Plata. Facultad de Ciencias Naturales y Museo. Buenos Aires, Argentina. Fil: Ison, Juan Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Garat, Luis. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Talevi, Marianella. Consejo Nacional de Investigaciones científicas y Tecnológicas (CONICET). Buenos Aires, Argentina. Fil: Garat, Luis. Consejo Nacional de Investigaciones científicas y Tecnológicas (CONICET). Buenos Aires, Argentina. Cretaceous record of birds is scarce and poorly preserved in Antarctica, and includes the derived Ornithuromorph Antarcticavis capelambensis from the early Maastrichtian Snow Hill Island Formation, the neornithines Vegavis iaai and Polarornis gregorii from the late Maastrichtian López de Bertodano Formation, and many indeterminate remains. A new indeterminate specimen from Maastrichtian levels of the López de Bertodano Formation (Marambio Island, James Ross Archipelago, Antarctica) is here described. The partial skeleton MLP 1-I-24-55 is represented by the proximal fragment of left tibiotarsus, proximal epífisis of left fibula, incomplete synsacrum, and caudal vertebra. With the aim of complementing the growing knowledge of the anatomy and microstructure of Antarctic birds, here, we use comparative and osteohistological methods. Despite the uncertainties and the diverse proposals in regards to the pylogenetic position of Vegavis and Polarornis, available descriptions of these taxa include histological analyses of the humeri and femur that we use here for comparative purposes. MLP 1-I-24-55 belongs to a bird of the size of the modern Great Grebe Podiceps major, larger ... Other/Unknown Material Antarc* Antarctic Antarctica Antártida Ross Archipelago Snow Hill Island RID-UnRN - Repositorio Institucional Digital Universidad Nacional de Río Negro Acosta ENVELOPE(-62.050,-62.050,-64.700,-64.700) Antarctic Argentina Hill Island ENVELOPE(76.070,76.070,-69.395,-69.395) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Ross Archipelago ENVELOPE(167.000,167.000,-77.500,-77.500) Snow Hill ENVELOPE(-57.183,-57.183,-64.466,-64.466) Snow Hill Island ENVELOPE(-57.183,-57.183,-64.466,-64.466) |
institution |
Open Polar |
collection |
RID-UnRN - Repositorio Institucional Digital Universidad Nacional de Río Negro |
op_collection_id |
ftunivnrionegro |
language |
English |
topic |
Ciencias Exactas y Naturales Bone histology BIRD Antártida |
spellingShingle |
Ciencias Exactas y Naturales Bone histology BIRD Antártida Talevi, Marianella Acosta Hospitaleche, Carolina Ison, Juan Ignacio Garat, Luis Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island |
topic_facet |
Ciencias Exactas y Naturales Bone histology BIRD Antártida |
description |
Fil: Talevi, Marianella. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Acosta Hospitaleche, Carolina. Universidad Nacional de La Plata. CONICET, División Paleontología Vertebrados, Museo de La Plata. Facultad de Ciencias Naturales y Museo. Buenos Aires, Argentina. Fil: Ison, Juan Ignacio. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Garat, Luis. Universidad Nacional de Río Negro. Instituto de Investigación en Paleobiología y Geología. Río Negro, Argentina. Fil: Talevi, Marianella. Consejo Nacional de Investigaciones científicas y Tecnológicas (CONICET). Buenos Aires, Argentina. Fil: Garat, Luis. Consejo Nacional de Investigaciones científicas y Tecnológicas (CONICET). Buenos Aires, Argentina. Cretaceous record of birds is scarce and poorly preserved in Antarctica, and includes the derived Ornithuromorph Antarcticavis capelambensis from the early Maastrichtian Snow Hill Island Formation, the neornithines Vegavis iaai and Polarornis gregorii from the late Maastrichtian López de Bertodano Formation, and many indeterminate remains. A new indeterminate specimen from Maastrichtian levels of the López de Bertodano Formation (Marambio Island, James Ross Archipelago, Antarctica) is here described. The partial skeleton MLP 1-I-24-55 is represented by the proximal fragment of left tibiotarsus, proximal epífisis of left fibula, incomplete synsacrum, and caudal vertebra. With the aim of complementing the growing knowledge of the anatomy and microstructure of Antarctic birds, here, we use comparative and osteohistological methods. Despite the uncertainties and the diverse proposals in regards to the pylogenetic position of Vegavis and Polarornis, available descriptions of these taxa include histological analyses of the humeri and femur that we use here for comparative purposes. MLP 1-I-24-55 belongs to a bird of the size of the modern Great Grebe Podiceps major, larger ... |
author |
Talevi, Marianella Acosta Hospitaleche, Carolina Ison, Juan Ignacio Garat, Luis |
author_facet |
Talevi, Marianella Acosta Hospitaleche, Carolina Ison, Juan Ignacio Garat, Luis |
author_sort |
Talevi, Marianella |
title |
Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island |
title_short |
Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island |
title_full |
Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island |
title_fullStr |
Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island |
title_full_unstemmed |
Preliminary results of the histological bone study of maastrichtian bird remains from Marambio Island |
title_sort |
preliminary results of the histological bone study of maastrichtian bird remains from marambio island |
publishDate |
2020 |
url |
http://rid.unrn.edu.ar/handle/20.500.12049/6706 https://hdl.handle.net/20.500.12049/6706 https://www.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdf |
long_lat |
ENVELOPE(-62.050,-62.050,-64.700,-64.700) ENVELOPE(76.070,76.070,-69.395,-69.395) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(167.000,167.000,-77.500,-77.500) ENVELOPE(-57.183,-57.183,-64.466,-64.466) ENVELOPE(-57.183,-57.183,-64.466,-64.466) |
geographic |
Acosta Antarctic Argentina Hill Island Marambio Ross Archipelago Snow Hill Snow Hill Island |
geographic_facet |
Acosta Antarctic Argentina Hill Island Marambio Ross Archipelago Snow Hill Snow Hill Island |
genre |
Antarc* Antarctic Antarctica Antártida Ross Archipelago Snow Hill Island |
genre_facet |
Antarc* Antarctic Antarctica Antártida Ross Archipelago Snow Hill Island |
op_relation |
https://www.apaleontologica.org.ar/rvcapa/?fbclid=IwAR3l4nT4wHqBgy6q3hqVWiNbLBGnxCihFx_lWPKYQvOwGAtgLrSq_K2J2i4 1° Reunión Virtual de la Asociación Paleontológica Argentina. https://www.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdf http://rid.unrn.edu.ar/handle/20.500.12049/6706 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ |
op_rightsnorm |
CC-BY-NC-SA |
op_doi |
https://doi.org/20.500.12049/6706 |
_version_ |
1766201468258353152 |