Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.

The Ediacaran fossil Corumbella is important because it is hypothesized to be a scyphozoan cnidarian, and thus might be one of the rare examples of bona fide Neoproterozoic animals. Unfortunately, its mode of life, style of skeletonization, and taxonomic affinity have been very controversial. Here,...

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Main Authors: Mírian L A Forancelli Pacheco, Douglas Galante, Fabio Rodrigues, Juliana de M Leme, Pidassa Bidola, Whitey Hagadorn, Marco Stockmar, Julia Herzen, Isaac D Rudnitzki, Franz Pfeiffer, Antonio C Marques
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0114219
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author Mírian L A Forancelli Pacheco
Douglas Galante
Fabio Rodrigues
Juliana de M Leme
Pidassa Bidola
Whitey Hagadorn
Marco Stockmar
Julia Herzen
Isaac D Rudnitzki
Franz Pfeiffer
Antonio C Marques
author_facet Mírian L A Forancelli Pacheco
Douglas Galante
Fabio Rodrigues
Juliana de M Leme
Pidassa Bidola
Whitey Hagadorn
Marco Stockmar
Julia Herzen
Isaac D Rudnitzki
Franz Pfeiffer
Antonio C Marques
author_sort Mírian L A Forancelli Pacheco
collection DOAJ
description The Ediacaran fossil Corumbella is important because it is hypothesized to be a scyphozoan cnidarian, and thus might be one of the rare examples of bona fide Neoproterozoic animals. Unfortunately, its mode of life, style of skeletonization, and taxonomic affinity have been very controversial. Here, we use X-ray micro-CT, SEM, and taphonomic analysis to compare preservational modes of Corumbella, in order to better understand the symmetry, mode of construction, preservational style, and taxonomy of this group. Results suggest that articulated and disarticulated specimens of Corumbella from the Ediacaran of Brazil, Paraguay, and the United States, although sometimes preserved very differently, represent the same taxon--Corumbella werneri. Corumbellids had a thick but flexible theca and probably lived with their basalmost part anchored in the sediment, much like Conotubus. When considered together, these results suggest that Corumbella was one of the first animals to build a skeleton, employing a lamellar microfabric similar to conulariids.
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spelling doaj.art-491e4d9749774da98b5724928d1ec38b2022-12-21T21:52:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01103e011421910.1371/journal.pone.0114219Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.Mírian L A Forancelli PachecoDouglas GalanteFabio RodriguesJuliana de M LemePidassa BidolaWhitey HagadornMarco StockmarJulia HerzenIsaac D RudnitzkiFranz PfeifferAntonio C MarquesThe Ediacaran fossil Corumbella is important because it is hypothesized to be a scyphozoan cnidarian, and thus might be one of the rare examples of bona fide Neoproterozoic animals. Unfortunately, its mode of life, style of skeletonization, and taxonomic affinity have been very controversial. Here, we use X-ray micro-CT, SEM, and taphonomic analysis to compare preservational modes of Corumbella, in order to better understand the symmetry, mode of construction, preservational style, and taxonomy of this group. Results suggest that articulated and disarticulated specimens of Corumbella from the Ediacaran of Brazil, Paraguay, and the United States, although sometimes preserved very differently, represent the same taxon--Corumbella werneri. Corumbellids had a thick but flexible theca and probably lived with their basalmost part anchored in the sediment, much like Conotubus. When considered together, these results suggest that Corumbella was one of the first animals to build a skeleton, employing a lamellar microfabric similar to conulariids.https://doi.org/10.1371/journal.pone.0114219
spellingShingle Mírian L A Forancelli Pacheco
Douglas Galante
Fabio Rodrigues
Juliana de M Leme
Pidassa Bidola
Whitey Hagadorn
Marco Stockmar
Julia Herzen
Isaac D Rudnitzki
Franz Pfeiffer
Antonio C Marques
Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.
PLoS ONE
title Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.
title_full Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.
title_fullStr Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.
title_full_unstemmed Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.
title_short Insights into the skeletonization, lifestyle, and affinity of the unusual Ediacaran fossil Corumbella.
title_sort insights into the skeletonization lifestyle and affinity of the unusual ediacaran fossil corumbella
url https://doi.org/10.1371/journal.pone.0114219
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