New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica
Vegavis iaai has key importance as the most complete of the few neornithine birds known from the Cretaceous, yet its phylogenetic relationships remain controversial. To seek new data to resolve this problem, we fully extracted the skeleton of the holotype MLP 93-I-3-1 from the sedimentary matrix it...
Published in: | Cretaceous Research |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Academic Press Ltd - Elsevier Science Ltd
|
Subjects: | |
Online Access: | http://hdl.handle.net/11336/152922 |
id |
ftconicet:oai:ri.conicet.gov.ar:11336/152922 |
---|---|
record_format |
openpolar |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/152922 2023-10-09T21:47:00+02:00 New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica Acosta Hospitaleche, Carolina Ileana Alicia Worthy, Trevor H. application/pdf http://hdl.handle.net/11336/152922 eng eng Academic Press Ltd - Elsevier Science Ltd info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0195667121000653 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2021.104818 http://hdl.handle.net/11336/152922 Acosta Hospitaleche, Carolina Ileana Alicia; Worthy, Trevor H.; New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 124; 8-2021; 1-12 0195-6671 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTICA CRETACEOUS ANSERIFORMES AVES 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/10.1016/j.cretres.2021.104818 2023-09-24T19:37:38Z Vegavis iaai has key importance as the most complete of the few neornithine birds known from the Cretaceous, yet its phylogenetic relationships remain controversial. To seek new data to resolve this problem, we fully extracted the skeleton of the holotype MLP 93-I-3-1 from the sedimentary matrix it had been found in to enable new direct observations on its osteology. We provide the first detailed descriptions of the synsacrum confirming the presence of fifteen ankylosed vertebrae, and of the cervical and thoracic vertebrae for this specimen, and elaborate on the available descriptions of the coracoid, humerus, radius, and all pelvic limb elements. A well-marked proximo-caudal fossa of the femur, described as a diagnostic character for Vegavis from observations of the referred specimen, is shallow and poorly defined in the holotype. The skeleton reveals a mix of features supporting enhanced diving ability for the bird. We make three-dimensional scans and high-quality images of all bones in the holotype available for further comparisons. Fil: Acosta Hospitaleche, Carolina Ileana Alicia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Worthy, Trevor H. Flinders University.; Australia Article in Journal/Newspaper Antarc* Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Acosta ENVELOPE(-62.050,-62.050,-64.700,-64.700) Alicia ENVELOPE(-63.483,-63.483,-64.833,-64.833) Argentina Flinders ENVELOPE(-66.667,-66.667,-69.267,-69.267) Fossa ENVELOPE(9.795,9.795,62.990,62.990) Cretaceous Research 124 104818 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTICA CRETACEOUS ANSERIFORMES AVES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTICA CRETACEOUS ANSERIFORMES AVES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Acosta Hospitaleche, Carolina Ileana Alicia Worthy, Trevor H. New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica |
topic_facet |
ANTARCTICA CRETACEOUS ANSERIFORMES AVES https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Vegavis iaai has key importance as the most complete of the few neornithine birds known from the Cretaceous, yet its phylogenetic relationships remain controversial. To seek new data to resolve this problem, we fully extracted the skeleton of the holotype MLP 93-I-3-1 from the sedimentary matrix it had been found in to enable new direct observations on its osteology. We provide the first detailed descriptions of the synsacrum confirming the presence of fifteen ankylosed vertebrae, and of the cervical and thoracic vertebrae for this specimen, and elaborate on the available descriptions of the coracoid, humerus, radius, and all pelvic limb elements. A well-marked proximo-caudal fossa of the femur, described as a diagnostic character for Vegavis from observations of the referred specimen, is shallow and poorly defined in the holotype. The skeleton reveals a mix of features supporting enhanced diving ability for the bird. We make three-dimensional scans and high-quality images of all bones in the holotype available for further comparisons. Fil: Acosta Hospitaleche, Carolina Ileana Alicia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Worthy, Trevor H. Flinders University.; Australia |
format |
Article in Journal/Newspaper |
author |
Acosta Hospitaleche, Carolina Ileana Alicia Worthy, Trevor H. |
author_facet |
Acosta Hospitaleche, Carolina Ileana Alicia Worthy, Trevor H. |
author_sort |
Acosta Hospitaleche, Carolina Ileana Alicia |
title |
New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica |
title_short |
New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica |
title_full |
New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica |
title_fullStr |
New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica |
title_full_unstemmed |
New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica |
title_sort |
new data on the vegavis iaai holotype from the maastrichtian of antarctica |
publisher |
Academic Press Ltd - Elsevier Science Ltd |
url |
http://hdl.handle.net/11336/152922 |
long_lat |
ENVELOPE(-62.050,-62.050,-64.700,-64.700) ENVELOPE(-63.483,-63.483,-64.833,-64.833) ENVELOPE(-66.667,-66.667,-69.267,-69.267) ENVELOPE(9.795,9.795,62.990,62.990) |
geographic |
Acosta Alicia Argentina Flinders Fossa |
geographic_facet |
Acosta Alicia Argentina Flinders Fossa |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0195667121000653 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2021.104818 http://hdl.handle.net/11336/152922 Acosta Hospitaleche, Carolina Ileana Alicia; Worthy, Trevor H.; New data on the Vegavis iaai holotype from the Maastrichtian of Antarctica; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 124; 8-2021; 1-12 0195-6671 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/10.1016/j.cretres.2021.104818 |
container_title |
Cretaceous Research |
container_volume |
124 |
container_start_page |
104818 |
_version_ |
1779309667530309632 |