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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/75287
Ver los metadatos del registro completo
id |
CONICETDig_fe2747bc80004c42b8e2cd65494659db |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/75287 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
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 |
_version_ |
1846781892468146176 |
score |
12.8982525 |