Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran

The intriguing Ediacaran fossil Namacalathus is described from limestones of the Tagatiya Guazú Formation, Itapucumi Group, Paraguay. This is the fifth occurrence of the genus in the Ediacaran geological record. The Paraguayan Namacalathus specimens are preserved as partially complete spheroidal cup...

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Detalles Bibliográficos
Autores principales: Veríssimo Warren, Lucas, Quaglio, Fernanda, Guimarães Simões, Marcello, Gaucher, Claudio, Riccomini, Claudio, Poiré, Daniel Gustavo, Tavares Freitas, Bernardo, Boggiani, Paulo C., Nobrega Sial, Alcides
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Naturales
Namacalathus
Ediacaran
Itapucumi Group
Paleoecology
Paleogeography
Clymene Ocean
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/146896
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-146896
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Namacalathus
Ediacaran
Itapucumi Group
Paleoecology
Paleogeography
Clymene Ocean
spellingShingle Ciencias Naturales
Namacalathus
Ediacaran
Itapucumi Group
Paleoecology
Paleogeography
Clymene Ocean
Veríssimo Warren, Lucas
Quaglio, Fernanda
Guimarães Simões, Marcello
Gaucher, Claudio
Riccomini, Claudio
Poiré, Daniel Gustavo
Tavares Freitas, Bernardo
Boggiani, Paulo C.
Nobrega Sial, Alcides
Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran
topic_facet Ciencias Naturales
Namacalathus
Ediacaran
Itapucumi Group
Paleoecology
Paleogeography
Clymene Ocean
description The intriguing Ediacaran fossil Namacalathus is described from limestones of the Tagatiya Guazú Formation, Itapucumi Group, Paraguay. This is the fifth occurrence of the genus in the Ediacaran geological record. The Paraguayan Namacalathus specimens are preserved as partially complete spheroidal cups with an opening at the top and thin walled stems. The remains of this soft-calcified globe-shaped organism occur as sparse disarticulated parautochthonous fragments within bioclastic deposits dominated by Cloudina shells with subordinate Corumbella fragments. The co-occurrence of these three skeletal metazoan species in the same environmental context attests that the diversity of the Paraguayan accumulations is ecologically comparable to the typical skeletal assemblage of the Nama Group. The discovery of new samples of Namacalathus in the Itapucumi Group also indicates that this genus presented a broader paleobiogeographic distribution than previously thought and, in the same way as Cloudina, it represents a low latitude, shallow water metazoan of the Ediacaran Gondwana.
format Articulo
Articulo
author Veríssimo Warren, Lucas
Quaglio, Fernanda
Guimarães Simões, Marcello
Gaucher, Claudio
Riccomini, Claudio
Poiré, Daniel Gustavo
Tavares Freitas, Bernardo
Boggiani, Paulo C.
Nobrega Sial, Alcides
author_facet Veríssimo Warren, Lucas
Quaglio, Fernanda
Guimarães Simões, Marcello
Gaucher, Claudio
Riccomini, Claudio
Poiré, Daniel Gustavo
Tavares Freitas, Bernardo
Boggiani, Paulo C.
Nobrega Sial, Alcides
author_sort Veríssimo Warren, Lucas
title Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran
title_short Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran
title_full Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran
title_fullStr Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran
title_full_unstemmed Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran
title_sort cloudina-corumbella-namacalathus association from the itapucumi group, paraguay: increasing ecosystem complexity and tiering at the end of the ediacaran
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/146896
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