Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://paleopolis.rediris.es/cg/1407/ http://hdl.handle.net/11449/117676 |
Resumo: | Fossil specimens of Heydrichia (?) poignantii, sp. nov. (Sporolithaceae, Sporolithales, Rhodophyta), representing the first confirmation of the genus in the fossil record, were discovered in thin sections of Albian limestones from the Riachuelo Formation, Sergipe Basin, and in thin sections of Albian -Cenomanian limestones from the Ponta do Mel Formation, Potiguar Basin in north-eastern Brazil. A detailed morphological-anatomical account of the species is provided, and its placement in Heydrichia is discussed in relation to current classification proposals. Comparisons with the four other known species of the genus, all non-fossil, show that H. poignantii is the only known species of Heydrichia in which thalli are encrusting to sparsely warty to horizontally layered with overlapping lamellate branches that commonly appear variously curved or arched, and in which thalli have sporangial complexes that become buried in the thallus. The evolutionary history of Heydrichia remains uncertain, but available data suggest that the genus may have diverged from the sporolithacean genus Sporolithon, known as early as Hauterivian times (c. 129.4-132.9 +/- 1 Ma) from Spain (and newly reported here from Switzerland), or it may have arisen from a graticulacean alga such as Graticula, dating from mid-Silurian times (c. 427-435 Ma). Current data also suggest that Heydrichia is more likely to have arrived in Brazil from Central Atlantic waters than from higher latitude South Atlantic waters. This implies that currently living species in southern Africa probably arose later from ancestors further equatorward in the South Atlantic, although confirming studies are needed. All non-fossil species of Heydrichia are known only from the southern hemisphere. |
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Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from SwitzerlandHeydrichiaSporolithaceaeSporolithonfossil coralline red algaeBrazilSwitzerlandHauterivianAlbianCenomanianFossil specimens of Heydrichia (?) poignantii, sp. nov. (Sporolithaceae, Sporolithales, Rhodophyta), representing the first confirmation of the genus in the fossil record, were discovered in thin sections of Albian limestones from the Riachuelo Formation, Sergipe Basin, and in thin sections of Albian -Cenomanian limestones from the Ponta do Mel Formation, Potiguar Basin in north-eastern Brazil. A detailed morphological-anatomical account of the species is provided, and its placement in Heydrichia is discussed in relation to current classification proposals. Comparisons with the four other known species of the genus, all non-fossil, show that H. poignantii is the only known species of Heydrichia in which thalli are encrusting to sparsely warty to horizontally layered with overlapping lamellate branches that commonly appear variously curved or arched, and in which thalli have sporangial complexes that become buried in the thallus. The evolutionary history of Heydrichia remains uncertain, but available data suggest that the genus may have diverged from the sporolithacean genus Sporolithon, known as early as Hauterivian times (c. 129.4-132.9 +/- 1 Ma) from Spain (and newly reported here from Switzerland), or it may have arisen from a graticulacean alga such as Graticula, dating from mid-Silurian times (c. 427-435 Ma). Current data also suggest that Heydrichia is more likely to have arrived in Brazil from Central Atlantic waters than from higher latitude South Atlantic waters. This implies that currently living species in southern Africa probably arose later from ancestors further equatorward in the South Atlantic, although confirming studies are needed. All non-fossil species of Heydrichia are known only from the southern hemisphere.PetrobrasLa Trobe Univ, Dept Bot, Bundoora, Vic 3086, AustraliaUniv Kansas, Dept Ecol & Evolutionary Biol, Lawrence, KS 66045 USAUNESP Univ Estadual Paulista, Ctr Geosci Appl Petr UNESPetro, BR-13506900 Rio Claro, SP, BrazilDept Geol Aplicada, BR-13506900 Rio Claro, SP, BrazilUNESP Univ Estadual Paulista, Ctr Geosci Appl Petr UNESPetro, BR-13506900 Rio Claro, SP, BrazilCarnets GeologieLa Trobe UnivUniv KansasUniversidade Estadual Paulista (Unesp)Dept Geol AplicadaWoelkerling, William J.Granier, BrunoDias-Brito, Dimas [UNESP]2015-03-18T15:56:45Z2015-03-18T15:56:45Z2014-05-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article139-158application/pdfhttp://paleopolis.rediris.es/cg/1407/Carnets De Geologie. Brest Cedex 3: Carnets Geologie, p. 139-158, 2014.1634-0744http://hdl.handle.net/11449/117676WOS:000343523200003WOS000343523200003.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCarnets De Geologie0.7610,496info:eu-repo/semantics/openAccess2024-01-07T06:25:35Zoai:repositorio.unesp.br:11449/117676Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:20:53.549716Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
title |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
spellingShingle |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland Woelkerling, William J. Heydrichia Sporolithaceae Sporolithon fossil coralline red algae Brazil Switzerland Hauterivian Albian Cenomanian |
title_short |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
title_full |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
title_fullStr |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
title_full_unstemmed |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
title_sort |
Heydrichia (?) poignantii, sp nov (Sporolithaceae, Sporolithales, Rhodophyta), a 100 million year old fossil coralline red alga from north-eastern Brazil, and a new Hauterivian record of Sporolithon from Switzerland |
author |
Woelkerling, William J. |
author_facet |
Woelkerling, William J. Granier, Bruno Dias-Brito, Dimas [UNESP] |
author_role |
author |
author2 |
Granier, Bruno Dias-Brito, Dimas [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
La Trobe Univ Univ Kansas Universidade Estadual Paulista (Unesp) Dept Geol Aplicada |
dc.contributor.author.fl_str_mv |
Woelkerling, William J. Granier, Bruno Dias-Brito, Dimas [UNESP] |
dc.subject.por.fl_str_mv |
Heydrichia Sporolithaceae Sporolithon fossil coralline red algae Brazil Switzerland Hauterivian Albian Cenomanian |
topic |
Heydrichia Sporolithaceae Sporolithon fossil coralline red algae Brazil Switzerland Hauterivian Albian Cenomanian |
description |
Fossil specimens of Heydrichia (?) poignantii, sp. nov. (Sporolithaceae, Sporolithales, Rhodophyta), representing the first confirmation of the genus in the fossil record, were discovered in thin sections of Albian limestones from the Riachuelo Formation, Sergipe Basin, and in thin sections of Albian -Cenomanian limestones from the Ponta do Mel Formation, Potiguar Basin in north-eastern Brazil. A detailed morphological-anatomical account of the species is provided, and its placement in Heydrichia is discussed in relation to current classification proposals. Comparisons with the four other known species of the genus, all non-fossil, show that H. poignantii is the only known species of Heydrichia in which thalli are encrusting to sparsely warty to horizontally layered with overlapping lamellate branches that commonly appear variously curved or arched, and in which thalli have sporangial complexes that become buried in the thallus. The evolutionary history of Heydrichia remains uncertain, but available data suggest that the genus may have diverged from the sporolithacean genus Sporolithon, known as early as Hauterivian times (c. 129.4-132.9 +/- 1 Ma) from Spain (and newly reported here from Switzerland), or it may have arisen from a graticulacean alga such as Graticula, dating from mid-Silurian times (c. 427-435 Ma). Current data also suggest that Heydrichia is more likely to have arrived in Brazil from Central Atlantic waters than from higher latitude South Atlantic waters. This implies that currently living species in southern Africa probably arose later from ancestors further equatorward in the South Atlantic, although confirming studies are needed. All non-fossil species of Heydrichia are known only from the southern hemisphere. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05-08 2015-03-18T15:56:45Z 2015-03-18T15:56:45Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://paleopolis.rediris.es/cg/1407/ Carnets De Geologie. Brest Cedex 3: Carnets Geologie, p. 139-158, 2014. 1634-0744 http://hdl.handle.net/11449/117676 WOS:000343523200003 WOS000343523200003.pdf |
url |
http://paleopolis.rediris.es/cg/1407/ http://hdl.handle.net/11449/117676 |
identifier_str_mv |
Carnets De Geologie. Brest Cedex 3: Carnets Geologie, p. 139-158, 2014. 1634-0744 WOS:000343523200003 WOS000343523200003.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carnets De Geologie 0.761 0,496 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
139-158 application/pdf |
dc.publisher.none.fl_str_mv |
Carnets Geologie |
publisher.none.fl_str_mv |
Carnets Geologie |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129418290266112 |