Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation

Abstract Soft-tissue preservation provides palaeobiological information that is otherwise lost during fossilization. In Brazil, the Early Cretaceous Santana Formation contains fish with integument, muscles, connective tissues, and eyes that are still preserved. Our study revealed that soft-tissues w...

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Autores principales:	Gabriel L. Osés, Setembrino Petri, Cibele G. Voltani, Gustavo M. E. M. Prado, Douglas Galante, Marcia A. Rizzutto, Isaac D. Rudnitzki, Evandro P. da Silva, Fabio Rodrigues, Elidiane C. Rangel, Paula A. Sucerquia, M. L. A. F. Pacheco
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c30de14b2b2342279d68c1cbfb28f4de
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spelling	oai:doaj.org-article:c30de14b2b2342279d68c1cbfb28f4de2021-12-02T15:05:46ZDeciphering pyritization-kerogenization gradient for fish soft-tissue preservation10.1038/s41598-017-01563-02045-2322https://doaj.org/article/c30de14b2b2342279d68c1cbfb28f4de2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01563-0https://doaj.org/toc/2045-2322Abstract Soft-tissue preservation provides palaeobiological information that is otherwise lost during fossilization. In Brazil, the Early Cretaceous Santana Formation contains fish with integument, muscles, connective tissues, and eyes that are still preserved. Our study revealed that soft-tissues were pyritized or kerogenized in different microfacies, which yielded distinct preservation fidelities. Indeed, new data provided the first record of pyritized vertebrate muscles and eyes. We propose that the different taphonomic pathways were controlled by distinct sedimentation rates in two different microfacies. Through this process, carcasses deposited in each of these microfacies underwent different residence times in sulphate-reduction and methanogenesis zones, thus yielding pyritized or kerogenized soft-tissues, and a similar process has previously been suggested in studies of a late Ediacaran lagerstätte.Gabriel L. OsésSetembrino PetriCibele G. VoltaniGustavo M. E. M. PradoDouglas GalanteMarcia A. RizzuttoIsaac D. RudnitzkiEvandro P. da SilvaFabio RodriguesElidiane C. RangelPaula A. SucerquiaM. L. A. F. PachecoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-15 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gabriel L. Osés Setembrino Petri Cibele G. Voltani Gustavo M. E. M. Prado Douglas Galante Marcia A. Rizzutto Isaac D. Rudnitzki Evandro P. da Silva Fabio Rodrigues Elidiane C. Rangel Paula A. Sucerquia M. L. A. F. Pacheco Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
description	Abstract Soft-tissue preservation provides palaeobiological information that is otherwise lost during fossilization. In Brazil, the Early Cretaceous Santana Formation contains fish with integument, muscles, connective tissues, and eyes that are still preserved. Our study revealed that soft-tissues were pyritized or kerogenized in different microfacies, which yielded distinct preservation fidelities. Indeed, new data provided the first record of pyritized vertebrate muscles and eyes. We propose that the different taphonomic pathways were controlled by distinct sedimentation rates in two different microfacies. Through this process, carcasses deposited in each of these microfacies underwent different residence times in sulphate-reduction and methanogenesis zones, thus yielding pyritized or kerogenized soft-tissues, and a similar process has previously been suggested in studies of a late Ediacaran lagerstätte.
format	article
author	Gabriel L. Osés Setembrino Petri Cibele G. Voltani Gustavo M. E. M. Prado Douglas Galante Marcia A. Rizzutto Isaac D. Rudnitzki Evandro P. da Silva Fabio Rodrigues Elidiane C. Rangel Paula A. Sucerquia M. L. A. F. Pacheco
author_facet	Gabriel L. Osés Setembrino Petri Cibele G. Voltani Gustavo M. E. M. Prado Douglas Galante Marcia A. Rizzutto Isaac D. Rudnitzki Evandro P. da Silva Fabio Rodrigues Elidiane C. Rangel Paula A. Sucerquia M. L. A. F. Pacheco
author_sort	Gabriel L. Osés
title	Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
title_short	Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
title_full	Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
title_fullStr	Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
title_full_unstemmed	Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
title_sort	deciphering pyritization-kerogenization gradient for fish soft-tissue preservation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c30de14b2b2342279d68c1cbfb28f4de
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Deciphering pyritization-kerogenization gradient for fish soft-tissue preservation

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