A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils

Autores
Escapa, Ignacio Hernán; Leslie, Andrew
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
PREMISE OF THE STUDY: Plants preserved in different fossil modes provide complementary data concerning the paleobiology and evolutionary relationships among plant groups. New material from the Early Jurassic of Patagonia shows the importance of combining these sources of information, as we describe the first compression/impression fossils of Pararaucaria, a genus of the extinct conifer family Cheirolepidiaceae previously known from permineralized fossils. These fossils extend the temporal range of this genus and may allow its wider recognition in the fossil record. METHODS: We studied fossil plants from the Early Jurassic (Pleinsbachian-Toarcian) locality of Taquetrén in Patagonia, Argentina using standard paleobo-tanical preparation and description techniques. KEY RESULTS: Pararaucaria taquetrensis consists of isolated ovuliferous scales and small seed cones with helically arranged bract-scale complexes attached to scale-leaf foliage. Bract-scale complexes consist of separated bracts and ovuliferous scales with two seeds and three broad distal lobes. CONCLUSIONS: Pararaucaria taquetrensis represents the oldest known Cheirolepidiaceae seed cones from the Southern Hemisphere, and this material highlights the importance of compression and impression fossils in understanding the distribution of fossil taxa. This material also suggests that Cheirolepidiaceae cone scales can be easily confused with those of another common conifer family, the Araucariaceae, which has important implications for accurately understanding Mesozoic conifer diversity and paleoecology.
Fil: Escapa, Ignacio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Leslie, Andrew. University Brown; Estados Unidos
Materia
Conifer
Paleobotany
Pararaucaria
Seed Cone
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/40738
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossilsEscapa, Ignacio HernánLeslie, AndrewConiferPaleobotanyPararaucariaSeed Conehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1PREMISE OF THE STUDY: Plants preserved in different fossil modes provide complementary data concerning the paleobiology and evolutionary relationships among plant groups. New material from the Early Jurassic of Patagonia shows the importance of combining these sources of information, as we describe the first compression/impression fossils of Pararaucaria, a genus of the extinct conifer family Cheirolepidiaceae previously known from permineralized fossils. These fossils extend the temporal range of this genus and may allow its wider recognition in the fossil record. METHODS: We studied fossil plants from the Early Jurassic (Pleinsbachian-Toarcian) locality of Taquetrén in Patagonia, Argentina using standard paleobo-tanical preparation and description techniques. KEY RESULTS: Pararaucaria taquetrensis consists of isolated ovuliferous scales and small seed cones with helically arranged bract-scale complexes attached to scale-leaf foliage. Bract-scale complexes consist of separated bracts and ovuliferous scales with two seeds and three broad distal lobes. CONCLUSIONS: Pararaucaria taquetrensis represents the oldest known Cheirolepidiaceae seed cones from the Southern Hemisphere, and this material highlights the importance of compression and impression fossils in understanding the distribution of fossil taxa. This material also suggests that Cheirolepidiaceae cone scales can be easily confused with those of another common conifer family, the Araucariaceae, which has important implications for accurately understanding Mesozoic conifer diversity and paleoecology.Fil: Escapa, Ignacio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Leslie, Andrew. University Brown; Estados UnidosBotanical Society of America2017-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/40738Escapa, Ignacio Hernán; Leslie, Andrew; A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils; Botanical Society of America; American Journal of Botany; 104; 2; 2-2017; 322-3340002-9122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1600321info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.3732/ajb.1600321info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:59Zoai:ri.conicet.gov.ar:11336/40738instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:32:59.896CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
title A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
spellingShingle A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
Escapa, Ignacio Hernán
Conifer
Paleobotany
Pararaucaria
Seed Cone
title_short A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
title_full A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
title_fullStr A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
title_full_unstemmed A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
title_sort A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils
dc.creator.none.fl_str_mv Escapa, Ignacio Hernán
Leslie, Andrew
author Escapa, Ignacio Hernán
author_facet Escapa, Ignacio Hernán
Leslie, Andrew
author_role author
author2 Leslie, Andrew
author2_role author
dc.subject.none.fl_str_mv Conifer
Paleobotany
Pararaucaria
Seed Cone
topic Conifer
Paleobotany
Pararaucaria
Seed Cone
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv PREMISE OF THE STUDY: Plants preserved in different fossil modes provide complementary data concerning the paleobiology and evolutionary relationships among plant groups. New material from the Early Jurassic of Patagonia shows the importance of combining these sources of information, as we describe the first compression/impression fossils of Pararaucaria, a genus of the extinct conifer family Cheirolepidiaceae previously known from permineralized fossils. These fossils extend the temporal range of this genus and may allow its wider recognition in the fossil record. METHODS: We studied fossil plants from the Early Jurassic (Pleinsbachian-Toarcian) locality of Taquetrén in Patagonia, Argentina using standard paleobo-tanical preparation and description techniques. KEY RESULTS: Pararaucaria taquetrensis consists of isolated ovuliferous scales and small seed cones with helically arranged bract-scale complexes attached to scale-leaf foliage. Bract-scale complexes consist of separated bracts and ovuliferous scales with two seeds and three broad distal lobes. CONCLUSIONS: Pararaucaria taquetrensis represents the oldest known Cheirolepidiaceae seed cones from the Southern Hemisphere, and this material highlights the importance of compression and impression fossils in understanding the distribution of fossil taxa. This material also suggests that Cheirolepidiaceae cone scales can be easily confused with those of another common conifer family, the Araucariaceae, which has important implications for accurately understanding Mesozoic conifer diversity and paleoecology.
Fil: Escapa, Ignacio Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Leslie, Andrew. University Brown; Estados Unidos
description PREMISE OF THE STUDY: Plants preserved in different fossil modes provide complementary data concerning the paleobiology and evolutionary relationships among plant groups. New material from the Early Jurassic of Patagonia shows the importance of combining these sources of information, as we describe the first compression/impression fossils of Pararaucaria, a genus of the extinct conifer family Cheirolepidiaceae previously known from permineralized fossils. These fossils extend the temporal range of this genus and may allow its wider recognition in the fossil record. METHODS: We studied fossil plants from the Early Jurassic (Pleinsbachian-Toarcian) locality of Taquetrén in Patagonia, Argentina using standard paleobo-tanical preparation and description techniques. KEY RESULTS: Pararaucaria taquetrensis consists of isolated ovuliferous scales and small seed cones with helically arranged bract-scale complexes attached to scale-leaf foliage. Bract-scale complexes consist of separated bracts and ovuliferous scales with two seeds and three broad distal lobes. CONCLUSIONS: Pararaucaria taquetrensis represents the oldest known Cheirolepidiaceae seed cones from the Southern Hemisphere, and this material highlights the importance of compression and impression fossils in understanding the distribution of fossil taxa. This material also suggests that Cheirolepidiaceae cone scales can be easily confused with those of another common conifer family, the Araucariaceae, which has important implications for accurately understanding Mesozoic conifer diversity and paleoecology.
publishDate 2017
dc.date.none.fl_str_mv 2017-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/40738
Escapa, Ignacio Hernán; Leslie, Andrew; A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils; Botanical Society of America; American Journal of Botany; 104; 2; 2-2017; 322-334
0002-9122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/40738
identifier_str_mv Escapa, Ignacio Hernán; Leslie, Andrew; A new cheirolepidiaceae (Coniferales) from the early jurassic of patagonia (argentina): Reconciling the records of impression and permineralized fossils; Botanical Society of America; American Journal of Botany; 104; 2; 2-2017; 322-334
0002-9122
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1600321
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.3732/ajb.1600321
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Botanical Society of America
publisher.none.fl_str_mv Botanical Society of America
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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