Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)

We examined a set of penguin bones from different Eocene levels of the Submeseta Formation in Marambio/ Seymour Island (James Ross Basin, Antarctic Peninsula) and found the bioerosive traces fossils presented here. Traces were assigned to Machichnus bohemicus, Machichnus indeterminate, Nihilichnus n...

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Autores principales: Irazoqui, Facundo Martín, Acosta Hospitaleche, Carolina Ileana Alicia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
Materias:
Ciencias Naturales
Pascichnia
Praedichnia
Domichnia
Fixichnia
Fodinichnia
Palaeogene
James Ross Basin
Antarctic Peninsula
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/165269
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-165269
record_format dspace
spelling I19-R120-10915-1652692024-04-24T20:10:13Z http://sedici.unlp.edu.ar/handle/10915/165269 Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica) Irazoqui, Facundo Martín Acosta Hospitaleche, Carolina Ileana Alicia 2021-12-19 2024-04-24T17:03:33Z en Ciencias Naturales Pascichnia Praedichnia Domichnia Fixichnia Fodinichnia Palaeogene James Ross Basin Antarctic Peninsula We examined a set of penguin bones from different Eocene levels of the Submeseta Formation in Marambio/ Seymour Island (James Ross Basin, Antarctic Peninsula) and found the bioerosive traces fossils presented here. Traces were assigned to Machichnus bohemicus, Machichnus indeterminate, Nihilichnus nihilicus, Centrichnidae indeterminate, and other ambiguous structures grouped into morphologic descriptive categories such as ‘shallow pits with radial scratches’, ‘indeterminate tunnels’, ‘rounded to sub-rounded shallow holes’, ‘oval deep traces’. According to the possible interpretations of these trace fossils, the taphonomic history of the remains, although different in all the cases, would include the primary deposition in a marine environment, transportation and subaerial exposure. Facultad de Ciencias Naturales y Museo Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Pascichnia
Praedichnia
Domichnia
Fixichnia
Fodinichnia
Palaeogene
James Ross Basin
Antarctic Peninsula
spellingShingle Ciencias Naturales
Pascichnia
Praedichnia
Domichnia
Fixichnia
Fodinichnia
Palaeogene
James Ross Basin
Antarctic Peninsula
Irazoqui, Facundo Martín
Acosta Hospitaleche, Carolina Ileana Alicia
Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)
topic_facet Ciencias Naturales
Pascichnia
Praedichnia
Domichnia
Fixichnia
Fodinichnia
Palaeogene
James Ross Basin
Antarctic Peninsula
description We examined a set of penguin bones from different Eocene levels of the Submeseta Formation in Marambio/ Seymour Island (James Ross Basin, Antarctic Peninsula) and found the bioerosive traces fossils presented here. Traces were assigned to Machichnus bohemicus, Machichnus indeterminate, Nihilichnus nihilicus, Centrichnidae indeterminate, and other ambiguous structures grouped into morphologic descriptive categories such as ‘shallow pits with radial scratches’, ‘indeterminate tunnels’, ‘rounded to sub-rounded shallow holes’, ‘oval deep traces’. According to the possible interpretations of these trace fossils, the taphonomic history of the remains, although different in all the cases, would include the primary deposition in a marine environment, transportation and subaerial exposure.
format Articulo
Articulo
author Irazoqui, Facundo Martín
Acosta Hospitaleche, Carolina Ileana Alicia
author_facet Irazoqui, Facundo Martín
Acosta Hospitaleche, Carolina Ileana Alicia
author_sort Irazoqui, Facundo Martín
title Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)
title_short Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)
title_full Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)
title_fullStr Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)
title_full_unstemmed Bioerosive traces in fossil penguin bones (Aves, Sphenisciformes) from the Eocene of Marambio/Seymour Island (West Antarctica)
title_sort bioerosive traces in fossil penguin bones (aves, sphenisciformes) from the eocene of marambio/seymour island (west antarctica)
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/165269
work_keys_str_mv AT irazoquifacundomartin bioerosivetracesinfossilpenguinbonesavessphenisciformesfromtheeoceneofmarambioseymourislandwestantarctica
AT acostahospitalechecarolinaileanaalicia bioerosivetracesinfossilpenguinbonesavessphenisciformesfromtheeoceneofmarambioseymourislandwestantarctica
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