The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America

Autores
Wilf, Peter; Donovan, Michael P.; Cúneo, Néstor Rubén; Gandolfo, María A.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
PREMISE OF THE STUDY: The flip-leaved podocarp Retrophyllum has a disjunct extant distribution in South American and Australasian tropical rainforests and a Gondwanic fossil record since the Eocene. Evolutionary, biogeographic, and paleoecological insights from previously described fossils are limited because they preserve little foliar variation and no reproductive structures. METHODS: We investigated new Retrophyllum material from the terminal Cretaceous Lefipán, the early Eocene Laguna del Hunco, and the early/middle Eocene Río Pichileufú floras of Patagonian Argentina. We also reviewed type material of historical Eocene fossils from southern Chile. KEY RESULTS: Cretaceous Retrophyllum superstes sp. nov. is described from a leafy twig, while Eocene R. spiralifolium sp. nov. includes several foliage forms and a peduncle with 13 pollen cones. Both species preserve extensive damage from sap-feeding insects associated with foliar transfusion tissue. The Eocene species exhibits a suite of characters linking it to both Neotropical and West Pacific Retrophyllum, along with several novel features. Retrophyllum araucoensis (Berry) comb. nov. stabilizes the nomenclature for the Chilean fossils. CONCLUSIONS: Retrophyllum is considerably older than previously thought and is a survivor of the end-Cretaceous extinction. Much of the characteristic foliar variation and pollen-cone morphology of the genus evolved by the early Eocene. The mixed biogeographic signal of R. spiralifolium supports vicariance and represents a rare Neotropical connection for terminal-Gondwanan Patagonia, which is predominantly linked to extant Australasian floras due to South American extinctions. The leaf morphology of the fossils suggests significant drought vulnerability as in living Retrophyllum, indicating humid paleoenvironments.
Fil: Wilf, Peter. State University of Pennsylvania; Estados Unidos
Fil: Donovan, Michael P.. State University of Pennsylvania; Estados Unidos. National Museum of Natural History; Estados Unidos
Fil: Cúneo, Néstor Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Gandolfo, María A.. Cornell University; Estados Unidos
Materia
ARGENTINA
CHILE
CONIFERS
CRETACEOUS
DISJUNCTIONS
EOCENE
FOSSILS
PODOCARPACEAE
RETROPHYLLUM
TRANSFUSION TISSUE
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:11336/75287

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oai_identifier_str oai:ri.conicet.gov.ar:11336/75287
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network_name_str CONICET Digital (CONICET)
spelling The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South AmericaWilf, PeterDonovan, Michael P.Cúneo, Néstor RubénGandolfo, María A.ARGENTINACHILECONIFERSCRETACEOUSDISJUNCTIONSEOCENEFOSSILSPODOCARPACEAERETROPHYLLUMTRANSFUSION TISSUEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1PREMISE OF THE STUDY: The flip-leaved podocarp Retrophyllum has a disjunct extant distribution in South American and Australasian tropical rainforests and a Gondwanic fossil record since the Eocene. Evolutionary, biogeographic, and paleoecological insights from previously described fossils are limited because they preserve little foliar variation and no reproductive structures. METHODS: We investigated new Retrophyllum material from the terminal Cretaceous Lefipán, the early Eocene Laguna del Hunco, and the early/middle Eocene Río Pichileufú floras of Patagonian Argentina. We also reviewed type material of historical Eocene fossils from southern Chile. KEY RESULTS: Cretaceous Retrophyllum superstes sp. nov. is described from a leafy twig, while Eocene R. spiralifolium sp. nov. includes several foliage forms and a peduncle with 13 pollen cones. Both species preserve extensive damage from sap-feeding insects associated with foliar transfusion tissue. The Eocene species exhibits a suite of characters linking it to both Neotropical and West Pacific Retrophyllum, along with several novel features. Retrophyllum araucoensis (Berry) comb. nov. stabilizes the nomenclature for the Chilean fossils. CONCLUSIONS: Retrophyllum is considerably older than previously thought and is a survivor of the end-Cretaceous extinction. Much of the characteristic foliar variation and pollen-cone morphology of the genus evolved by the early Eocene. The mixed biogeographic signal of R. spiralifolium supports vicariance and represents a rare Neotropical connection for terminal-Gondwanan Patagonia, which is predominantly linked to extant Australasian floras due to South American extinctions. The leaf morphology of the fossils suggests significant drought vulnerability as in living Retrophyllum, indicating humid paleoenvironments.Fil: Wilf, Peter. State University of Pennsylvania; Estados UnidosFil: Donovan, Michael P.. State University of Pennsylvania; Estados Unidos. National Museum of Natural History; Estados UnidosFil: Cúneo, Néstor Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Gandolfo, María A.. Cornell University; Estados UnidosBotanical Society of America2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75287Wilf, Peter; Donovan, Michael P.; Cúneo, Néstor Rubén; Gandolfo, María A.; The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America; Botanical Society of America; American Journal of Botany; 104; 9; 9-2017; 1344-13690002-9122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.1700158info:eu-repo/semantics/altIdentifier/url/https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1700158info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:30:08Zoai:ri.conicet.gov.ar:11336/75287instacron: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:34982025-10-22 11:30:08.581CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
title The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
spellingShingle The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
Wilf, Peter
ARGENTINA
CHILE
CONIFERS
CRETACEOUS
DISJUNCTIONS
EOCENE
FOSSILS
PODOCARPACEAE
RETROPHYLLUM
TRANSFUSION TISSUE
title_short The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
title_full The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
title_fullStr The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
title_full_unstemmed The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
title_sort The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America
dc.creator.none.fl_str_mv Wilf, Peter
Donovan, Michael P.
Cúneo, Néstor Rubén
Gandolfo, María A.
author Wilf, Peter
author_facet Wilf, Peter
Donovan, Michael P.
Cúneo, Néstor Rubén
Gandolfo, María A.
author_role author
author2 Donovan, Michael P.
Cúneo, Néstor Rubén
Gandolfo, María A.
author2_role author
author
author
dc.subject.none.fl_str_mv ARGENTINA
CHILE
CONIFERS
CRETACEOUS
DISJUNCTIONS
EOCENE
FOSSILS
PODOCARPACEAE
RETROPHYLLUM
TRANSFUSION TISSUE
topic ARGENTINA
CHILE
CONIFERS
CRETACEOUS
DISJUNCTIONS
EOCENE
FOSSILS
PODOCARPACEAE
RETROPHYLLUM
TRANSFUSION TISSUE
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: The flip-leaved podocarp Retrophyllum has a disjunct extant distribution in South American and Australasian tropical rainforests and a Gondwanic fossil record since the Eocene. Evolutionary, biogeographic, and paleoecological insights from previously described fossils are limited because they preserve little foliar variation and no reproductive structures. METHODS: We investigated new Retrophyllum material from the terminal Cretaceous Lefipán, the early Eocene Laguna del Hunco, and the early/middle Eocene Río Pichileufú floras of Patagonian Argentina. We also reviewed type material of historical Eocene fossils from southern Chile. KEY RESULTS: Cretaceous Retrophyllum superstes sp. nov. is described from a leafy twig, while Eocene R. spiralifolium sp. nov. includes several foliage forms and a peduncle with 13 pollen cones. Both species preserve extensive damage from sap-feeding insects associated with foliar transfusion tissue. The Eocene species exhibits a suite of characters linking it to both Neotropical and West Pacific Retrophyllum, along with several novel features. Retrophyllum araucoensis (Berry) comb. nov. stabilizes the nomenclature for the Chilean fossils. CONCLUSIONS: Retrophyllum is considerably older than previously thought and is a survivor of the end-Cretaceous extinction. Much of the characteristic foliar variation and pollen-cone morphology of the genus evolved by the early Eocene. The mixed biogeographic signal of R. spiralifolium supports vicariance and represents a rare Neotropical connection for terminal-Gondwanan Patagonia, which is predominantly linked to extant Australasian floras due to South American extinctions. The leaf morphology of the fossils suggests significant drought vulnerability as in living Retrophyllum, indicating humid paleoenvironments.
Fil: Wilf, Peter. State University of Pennsylvania; Estados Unidos
Fil: Donovan, Michael P.. State University of Pennsylvania; Estados Unidos. National Museum of Natural History; Estados Unidos
Fil: Cúneo, Néstor Rubén. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Gandolfo, María A.. Cornell University; Estados Unidos
description PREMISE OF THE STUDY: The flip-leaved podocarp Retrophyllum has a disjunct extant distribution in South American and Australasian tropical rainforests and a Gondwanic fossil record since the Eocene. Evolutionary, biogeographic, and paleoecological insights from previously described fossils are limited because they preserve little foliar variation and no reproductive structures. METHODS: We investigated new Retrophyllum material from the terminal Cretaceous Lefipán, the early Eocene Laguna del Hunco, and the early/middle Eocene Río Pichileufú floras of Patagonian Argentina. We also reviewed type material of historical Eocene fossils from southern Chile. KEY RESULTS: Cretaceous Retrophyllum superstes sp. nov. is described from a leafy twig, while Eocene R. spiralifolium sp. nov. includes several foliage forms and a peduncle with 13 pollen cones. Both species preserve extensive damage from sap-feeding insects associated with foliar transfusion tissue. The Eocene species exhibits a suite of characters linking it to both Neotropical and West Pacific Retrophyllum, along with several novel features. Retrophyllum araucoensis (Berry) comb. nov. stabilizes the nomenclature for the Chilean fossils. CONCLUSIONS: Retrophyllum is considerably older than previously thought and is a survivor of the end-Cretaceous extinction. Much of the characteristic foliar variation and pollen-cone morphology of the genus evolved by the early Eocene. The mixed biogeographic signal of R. spiralifolium supports vicariance and represents a rare Neotropical connection for terminal-Gondwanan Patagonia, which is predominantly linked to extant Australasian floras due to South American extinctions. The leaf morphology of the fossils suggests significant drought vulnerability as in living Retrophyllum, indicating humid paleoenvironments.
publishDate 2017
dc.date.none.fl_str_mv 2017-09
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/11336/75287
Wilf, Peter; Donovan, Michael P.; Cúneo, Néstor Rubén; Gandolfo, María A.; The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America; Botanical Society of America; American Journal of Botany; 104; 9; 9-2017; 1344-1369
0002-9122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75287
identifier_str_mv Wilf, Peter; Donovan, Michael P.; Cúneo, Néstor Rubén; Gandolfo, María A.; The fossil flip-leaves (Retrophyllum, Podocarpaceae) of southern South America; Botanical Society of America; American Journal of Botany; 104; 9; 9-2017; 1344-1369
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.1700158
info:eu-repo/semantics/altIdentifier/url/https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1700158
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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