First South American Agathis (Araucariaceae), eocene of Patagonia

Autores
Wilf, Peter; Escapa, Ignacio Hernán; Cúneo, Rubén; Kooyman, Robert M.; Johnson, Kirk R.; Iglesias, Ari
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
- Premise of the study: Agathis is an iconic genus of large, ecologically important, and economically valuable conifers that range over lowland to upper montane rainforests from New Zealand to Sumatra. Exploitation of its timber and copal has greatly reduced the genus’s numbers. The early fossil record of Agathis comes entirely from Australia, often presumed to be its area of origin. Agathis has no previous record from South America. - Methods: We describe abundant macrofossils of Agathis vegetative and reproductive organs, from early and middle Eocene rainforest paleofloras of Patagonia, Argentina. The leaves were formerly assigned to the New World cycad genus Zamia. - Key results: Agathis zamunerae sp. nov. is the first South American occurrence and the most complete representation of Agathis in the fossil record. Its morphological features are fully consistent with the living genus. The most similar living species is A. lenticula, endemic to lower montane rainforests of northern Borneo. - Conclusions: Agathis zamunerae sp. nov. demonstrates the presence of modern-aspect Agathis by 52.2 mya and vastly increases the early range and possible areas of origin of the genus. The revision from Zamia breaks another link between the Eocene and living floras of South America. Agathis was a dominant, keystone element of the Patagonian Eocene floras, alongside numerous other plant taxa that still associate with it in Australasia and Southeast Asia. Agathis extinction in South America was an integral part of the transformation of Patagonian biomes over millions of years, but the living species are disappearing from their ranges at a far greater rate.
Fil: Wilf, Peter. State University of Pennsylvania; Estados Unidos
Fil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cúneo, Rubén. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Kooyman, Robert M.. National Herbarium of New South Wales, Sidney; Australia
Fil: Johnson, Kirk R.. National Museum Of Natural History, Smithsonian; Estados Unidos
Fil: Iglesias, Ari. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Reg.universidad Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente; Argentina
Materia
Agathis
Araucariaceae
Argentina
Borneo
Conifers
Eocene
Extinction
Laguna del Hunco
Rainforests
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:11336/27660
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/27660
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling First South American Agathis (Araucariaceae), eocene of PatagoniaWilf, PeterEscapa, Ignacio HernánCúneo, RubénKooyman, Robert M.Johnson, Kirk R.Iglesias, AriAgathisAraucariaceaeArgentinaBorneoConifersEoceneExtinctionLaguna del HuncoRainforests- Premise of the study: Agathis is an iconic genus of large, ecologically important, and economically valuable conifers that range over lowland to upper montane rainforests from New Zealand to Sumatra. Exploitation of its timber and copal has greatly reduced the genus’s numbers. The early fossil record of Agathis comes entirely from Australia, often presumed to be its area of origin. Agathis has no previous record from South America. - Methods: We describe abundant macrofossils of Agathis vegetative and reproductive organs, from early and middle Eocene rainforest paleofloras of Patagonia, Argentina. The leaves were formerly assigned to the New World cycad genus Zamia. - Key results: Agathis zamunerae sp. nov. is the first South American occurrence and the most complete representation of Agathis in the fossil record. Its morphological features are fully consistent with the living genus. The most similar living species is A. lenticula, endemic to lower montane rainforests of northern Borneo. - Conclusions: Agathis zamunerae sp. nov. demonstrates the presence of modern-aspect Agathis by 52.2 mya and vastly increases the early range and possible areas of origin of the genus. The revision from Zamia breaks another link between the Eocene and living floras of South America. Agathis was a dominant, keystone element of the Patagonian Eocene floras, alongside numerous other plant taxa that still associate with it in Australasia and Southeast Asia. Agathis extinction in South America was an integral part of the transformation of Patagonian biomes over millions of years, but the living species are disappearing from their ranges at a far greater rate.Fil: Wilf, Peter. State University of Pennsylvania; Estados UnidosFil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cúneo, Rubén. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Kooyman, Robert M.. National Herbarium of New South Wales, Sidney; AustraliaFil: Johnson, Kirk R.. National Museum Of Natural History, Smithsonian; Estados UnidosFil: Iglesias, Ari. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Reg.universidad Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente; ArgentinaBotanical Society of America2014-01-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/27660Wilf, Peter; Escapa, Ignacio Hernán; Cúneo, Rubén; Kooyman, Robert M.; Johnson, Kirk R.; et al.; First South American Agathis (Araucariaceae), eocene of Patagonia; Botanical Society of America; American Journal of Botany; 101; 1; 13-1-2014; 156-1790002-9122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.amjbot.org/content/101/1/156.fullinfo:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/24418576info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1300327info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:12Zoai:ri.conicet.gov.ar:11336/27660instacron: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:34982025-09-03 10:09:12.658CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv First South American Agathis (Araucariaceae), eocene of Patagonia
title First South American Agathis (Araucariaceae), eocene of Patagonia
spellingShingle First South American Agathis (Araucariaceae), eocene of Patagonia
Wilf, Peter
Agathis
Araucariaceae
Argentina
Borneo
Conifers
Eocene
Extinction
Laguna del Hunco
Rainforests
title_short First South American Agathis (Araucariaceae), eocene of Patagonia
title_full First South American Agathis (Araucariaceae), eocene of Patagonia
title_fullStr First South American Agathis (Araucariaceae), eocene of Patagonia
title_full_unstemmed First South American Agathis (Araucariaceae), eocene of Patagonia
title_sort First South American Agathis (Araucariaceae), eocene of Patagonia
dc.creator.none.fl_str_mv Wilf, Peter
Escapa, Ignacio Hernán
Cúneo, Rubén
Kooyman, Robert M.
Johnson, Kirk R.
Iglesias, Ari
author Wilf, Peter
author_facet Wilf, Peter
Escapa, Ignacio Hernán
Cúneo, Rubén
Kooyman, Robert M.
Johnson, Kirk R.
Iglesias, Ari
author_role author
author2 Escapa, Ignacio Hernán
Cúneo, Rubén
Kooyman, Robert M.
Johnson, Kirk R.
Iglesias, Ari
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Agathis
Araucariaceae
Argentina
Borneo
Conifers
Eocene
Extinction
Laguna del Hunco
Rainforests
topic Agathis
Araucariaceae
Argentina
Borneo
Conifers
Eocene
Extinction
Laguna del Hunco
Rainforests
dc.description.none.fl_txt_mv - Premise of the study: Agathis is an iconic genus of large, ecologically important, and economically valuable conifers that range over lowland to upper montane rainforests from New Zealand to Sumatra. Exploitation of its timber and copal has greatly reduced the genus’s numbers. The early fossil record of Agathis comes entirely from Australia, often presumed to be its area of origin. Agathis has no previous record from South America. - Methods: We describe abundant macrofossils of Agathis vegetative and reproductive organs, from early and middle Eocene rainforest paleofloras of Patagonia, Argentina. The leaves were formerly assigned to the New World cycad genus Zamia. - Key results: Agathis zamunerae sp. nov. is the first South American occurrence and the most complete representation of Agathis in the fossil record. Its morphological features are fully consistent with the living genus. The most similar living species is A. lenticula, endemic to lower montane rainforests of northern Borneo. - Conclusions: Agathis zamunerae sp. nov. demonstrates the presence of modern-aspect Agathis by 52.2 mya and vastly increases the early range and possible areas of origin of the genus. The revision from Zamia breaks another link between the Eocene and living floras of South America. Agathis was a dominant, keystone element of the Patagonian Eocene floras, alongside numerous other plant taxa that still associate with it in Australasia and Southeast Asia. Agathis extinction in South America was an integral part of the transformation of Patagonian biomes over millions of years, but the living species are disappearing from their ranges at a far greater rate.
Fil: Wilf, Peter. State University of Pennsylvania; Estados Unidos
Fil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cúneo, Rubén. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Kooyman, Robert M.. National Herbarium of New South Wales, Sidney; Australia
Fil: Johnson, Kirk R.. National Museum Of Natural History, Smithsonian; Estados Unidos
Fil: Iglesias, Ari. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Reg.universidad Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente; Argentina
description - Premise of the study: Agathis is an iconic genus of large, ecologically important, and economically valuable conifers that range over lowland to upper montane rainforests from New Zealand to Sumatra. Exploitation of its timber and copal has greatly reduced the genus’s numbers. The early fossil record of Agathis comes entirely from Australia, often presumed to be its area of origin. Agathis has no previous record from South America. - Methods: We describe abundant macrofossils of Agathis vegetative and reproductive organs, from early and middle Eocene rainforest paleofloras of Patagonia, Argentina. The leaves were formerly assigned to the New World cycad genus Zamia. - Key results: Agathis zamunerae sp. nov. is the first South American occurrence and the most complete representation of Agathis in the fossil record. Its morphological features are fully consistent with the living genus. The most similar living species is A. lenticula, endemic to lower montane rainforests of northern Borneo. - Conclusions: Agathis zamunerae sp. nov. demonstrates the presence of modern-aspect Agathis by 52.2 mya and vastly increases the early range and possible areas of origin of the genus. The revision from Zamia breaks another link between the Eocene and living floras of South America. Agathis was a dominant, keystone element of the Patagonian Eocene floras, alongside numerous other plant taxa that still associate with it in Australasia and Southeast Asia. Agathis extinction in South America was an integral part of the transformation of Patagonian biomes over millions of years, but the living species are disappearing from their ranges at a far greater rate.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-13
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/11336/27660
Wilf, Peter; Escapa, Ignacio Hernán; Cúneo, Rubén; Kooyman, Robert M.; Johnson, Kirk R.; et al.; First South American Agathis (Araucariaceae), eocene of Patagonia; Botanical Society of America; American Journal of Botany; 101; 1; 13-1-2014; 156-179
0002-9122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/27660
identifier_str_mv Wilf, Peter; Escapa, Ignacio Hernán; Cúneo, Rubén; Kooyman, Robert M.; Johnson, Kirk R.; et al.; First South American Agathis (Araucariaceae), eocene of Patagonia; Botanical Society of America; American Journal of Botany; 101; 1; 13-1-2014; 156-179
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/url/http://www.amjbot.org/content/101/1/156.full
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/24418576
info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1300327
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
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 13.13397

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