New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.revpalbo.2016.11.001 http://hdl.handle.net/11449/173996 |
Resumo: | Continuing palaeofloristic studies in the Northern Tocantins Fossil Forest, we describe two new calamitalean species from the Permian of the Parnaíba Basin (central-north Brazil). The fossils comprise axes of various sizes, preserved anatomically as siliceous petrifactions, and found in highly mature sandy fluvial deposits of the Motuca Formation. Based on anatomical and morphological characteristics, Arthropitys tocantinensis sp. nov. and Arthropitys barthelii sp. nov. are described. They share a small central pith cavity (extremely reduced in the latter), scalariform tracheid pitting, and prominent pitting of the ray parenchyma. However, they differ markedly in their branching system: the former having 3–12 branches per node either with or lacking secondary growth, the latter showing 2–17 branches without any secondary growth. However, in A. tocantinensis sp. nov., the presence of large woody branches supports a more complex architecture with at least three successive orders of branches. The extensive secondary tissue in both species is homogeneous; clear segmentation is only visible in the proximal wood of A. tocantinensis sp. nov., but completely absent in A. barthelii sp. nov. The growth architecture of these upright growing, self-supporting trunks are reconstructed based on sizable transverse and longitudinal preparations. Our results confirm that thick woody calamitaleans were elements of disturbed riparian vegetation and much more diverse in terms of anatomy and branching patterns than previously thought. They were well adapted to seasonally dry conditions and formed major plant constituents of Permian low-latitude Southern Hemisphere communities. Additionally, we report the first evidence of colonisation on arborescent calamitaleans by herbaceous sphenophyte axes from the Permian. One of the Arthropitys stems hosts at least 30 Sphenophyllum shoots of various ontogenetic stages, growing inside the destroyed pith, which was previously excavated by arthropod boring. Based on the distribution of key genera within late Paleozoic floras of Euramerica, Gondwana and Cathaysia floral realms cluster analysis and Jaccard Coefficient highlight the distribution of a “Mid-North Brazilian” phytogeographic Region during the early Permian. |
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New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic florasGrowth architecturePermian phytogeographyPlant interactionsSphenophyte anatomyContinuing palaeofloristic studies in the Northern Tocantins Fossil Forest, we describe two new calamitalean species from the Permian of the Parnaíba Basin (central-north Brazil). The fossils comprise axes of various sizes, preserved anatomically as siliceous petrifactions, and found in highly mature sandy fluvial deposits of the Motuca Formation. Based on anatomical and morphological characteristics, Arthropitys tocantinensis sp. nov. and Arthropitys barthelii sp. nov. are described. They share a small central pith cavity (extremely reduced in the latter), scalariform tracheid pitting, and prominent pitting of the ray parenchyma. However, they differ markedly in their branching system: the former having 3–12 branches per node either with or lacking secondary growth, the latter showing 2–17 branches without any secondary growth. However, in A. tocantinensis sp. nov., the presence of large woody branches supports a more complex architecture with at least three successive orders of branches. The extensive secondary tissue in both species is homogeneous; clear segmentation is only visible in the proximal wood of A. tocantinensis sp. nov., but completely absent in A. barthelii sp. nov. The growth architecture of these upright growing, self-supporting trunks are reconstructed based on sizable transverse and longitudinal preparations. Our results confirm that thick woody calamitaleans were elements of disturbed riparian vegetation and much more diverse in terms of anatomy and branching patterns than previously thought. They were well adapted to seasonally dry conditions and formed major plant constituents of Permian low-latitude Southern Hemisphere communities. Additionally, we report the first evidence of colonisation on arborescent calamitaleans by herbaceous sphenophyte axes from the Permian. One of the Arthropitys stems hosts at least 30 Sphenophyllum shoots of various ontogenetic stages, growing inside the destroyed pith, which was previously excavated by arthropod boring. Based on the distribution of key genera within late Paleozoic floras of Euramerica, Gondwana and Cathaysia floral realms cluster analysis and Jaccard Coefficient highlight the distribution of a “Mid-North Brazilian” phytogeographic Region during the early Permian.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Deutsche ForschungsgemeinschaftUNESP – Rio Claro Post Graduation Program in Regional Geology Institute of Geosciences and Exact ScienceMuseum für Naturkunde, Moritzstraße 20TU Bergakademie Freiberg Geological Institute, Bernhard-von Cotta Straße 2Department of Paleontology and Stratigraphy Institute of Geosciences Universidade Federal do Rio Grande do Sul, Caixa Postal 15.001UNESP – Rio Claro Department of Applied Geology Institute of Geosciences and Exact Science, Caixa Postal 178UNESP – Rio Claro Post Graduation Program in Regional Geology Institute of Geosciences and Exact ScienceUNESP – Rio Claro Department of Applied Geology Institute of Geosciences and Exact Science, Caixa Postal 178CNPq: 483704/2010-5CNPq: PQ 305687/2010-7CNPq: PQ 309211/2013-1Deutsche Forschungsgemeinschaft: RO 1273/3-1Universidade Estadual Paulista (Unesp)Museum für NaturkundeGeological InstituteUniversidade Federal do Rio Grande do SulNeregato, Rodrigo [UNESP]Rößler, RonnyIannuzzi, RobertoNoll, RobertRohn, Rosemarie [UNESP]2018-12-11T17:08:40Z2018-12-11T17:08:40Z2017-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article37-61application/pdfhttp://dx.doi.org/10.1016/j.revpalbo.2016.11.001Review of Palaeobotany and Palynology, v. 237, p. 37-61.0034-6667http://hdl.handle.net/11449/17399610.1016/j.revpalbo.2016.11.0012-s2.0-850073821552-s2.0-85007382155.pdf89362751611971310000-0001-6110-4194Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengReview of Palaeobotany and Palynology0,756info:eu-repo/semantics/openAccess2023-10-12T06:03:48Zoai:repositorio.unesp.br:11449/173996Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:40:26.764692Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
title |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
spellingShingle |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras Neregato, Rodrigo [UNESP] Growth architecture Permian phytogeography Plant interactions Sphenophyte anatomy |
title_short |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
title_full |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
title_fullStr |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
title_full_unstemmed |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
title_sort |
New petrified calamitaleans from the Permian of the Parnaíba Basin, central-north Brazil, part II, and phytogeographic implications for late Paleozoic floras |
author |
Neregato, Rodrigo [UNESP] |
author_facet |
Neregato, Rodrigo [UNESP] Rößler, Ronny Iannuzzi, Roberto Noll, Robert Rohn, Rosemarie [UNESP] |
author_role |
author |
author2 |
Rößler, Ronny Iannuzzi, Roberto Noll, Robert Rohn, Rosemarie [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Museum für Naturkunde Geological Institute Universidade Federal do Rio Grande do Sul |
dc.contributor.author.fl_str_mv |
Neregato, Rodrigo [UNESP] Rößler, Ronny Iannuzzi, Roberto Noll, Robert Rohn, Rosemarie [UNESP] |
dc.subject.por.fl_str_mv |
Growth architecture Permian phytogeography Plant interactions Sphenophyte anatomy |
topic |
Growth architecture Permian phytogeography Plant interactions Sphenophyte anatomy |
description |
Continuing palaeofloristic studies in the Northern Tocantins Fossil Forest, we describe two new calamitalean species from the Permian of the Parnaíba Basin (central-north Brazil). The fossils comprise axes of various sizes, preserved anatomically as siliceous petrifactions, and found in highly mature sandy fluvial deposits of the Motuca Formation. Based on anatomical and morphological characteristics, Arthropitys tocantinensis sp. nov. and Arthropitys barthelii sp. nov. are described. They share a small central pith cavity (extremely reduced in the latter), scalariform tracheid pitting, and prominent pitting of the ray parenchyma. However, they differ markedly in their branching system: the former having 3–12 branches per node either with or lacking secondary growth, the latter showing 2–17 branches without any secondary growth. However, in A. tocantinensis sp. nov., the presence of large woody branches supports a more complex architecture with at least three successive orders of branches. The extensive secondary tissue in both species is homogeneous; clear segmentation is only visible in the proximal wood of A. tocantinensis sp. nov., but completely absent in A. barthelii sp. nov. The growth architecture of these upright growing, self-supporting trunks are reconstructed based on sizable transverse and longitudinal preparations. Our results confirm that thick woody calamitaleans were elements of disturbed riparian vegetation and much more diverse in terms of anatomy and branching patterns than previously thought. They were well adapted to seasonally dry conditions and formed major plant constituents of Permian low-latitude Southern Hemisphere communities. Additionally, we report the first evidence of colonisation on arborescent calamitaleans by herbaceous sphenophyte axes from the Permian. One of the Arthropitys stems hosts at least 30 Sphenophyllum shoots of various ontogenetic stages, growing inside the destroyed pith, which was previously excavated by arthropod boring. Based on the distribution of key genera within late Paleozoic floras of Euramerica, Gondwana and Cathaysia floral realms cluster analysis and Jaccard Coefficient highlight the distribution of a “Mid-North Brazilian” phytogeographic Region during the early Permian. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-02-01 2018-12-11T17:08:40Z 2018-12-11T17:08:40Z |
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://dx.doi.org/10.1016/j.revpalbo.2016.11.001 Review of Palaeobotany and Palynology, v. 237, p. 37-61. 0034-6667 http://hdl.handle.net/11449/173996 10.1016/j.revpalbo.2016.11.001 2-s2.0-85007382155 2-s2.0-85007382155.pdf 8936275161197131 0000-0001-6110-4194 |
url |
http://dx.doi.org/10.1016/j.revpalbo.2016.11.001 http://hdl.handle.net/11449/173996 |
identifier_str_mv |
Review of Palaeobotany and Palynology, v. 237, p. 37-61. 0034-6667 10.1016/j.revpalbo.2016.11.001 2-s2.0-85007382155 2-s2.0-85007382155.pdf 8936275161197131 0000-0001-6110-4194 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Review of Palaeobotany and Palynology 0,756 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
37-61 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
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UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808128398350876672 |