Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)

Autores
Jud, Nathan A.; Iglesias, Ari; Wilf, Peter; Gandolfo, Maria Alejandra
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Premise of the Study: The fossil record is critical for testing biogeographic hypotheses. Menispermaceae (moonseeds) are a widespread family with a rich fossil record and alternative hypotheses related to their origin and diversification. The family is well-represented in Cenozoic deposits of the northern hemisphere, but the record in the southern hemisphere is sparse. Filling in the southern record of moonseeds will improve our ability to evaluate alternative biogeographic hypotheses. Methods: Fossils were collected from the Salamanca (early Paleocene, Danian) and the Huitrera (early Eocene, Ypresian) formations in Chubut Province, Argentina. We photographed them using light microscopy, epifluorescence, and scanning electron microscopy and compared the fossils with similar extant and fossil Menispermaceae using herbarium specimens and published literature. Key Results: We describe fossil leaves and endocarps attributed to Menispermaceae from Argentinean Patagonia. The leaves are identified to the family, and the endocarps are further identified to the tribe Cissampelideae. The Salamancan endocarp is assigned to the extant genus Stephania. These fossils significantly expand the known range of Menispermaceae in South America, and they include the oldest (ca. 64 Ma) unequivocal evidence of the family worldwide. Conclusions: Our findings highlight the importance of West Gondwana in the evolution of Menispermaceae during the Paleogene. Currently, the fossil record does not discern between a Laurasian or Gondwanan origin; however, it does demonstrate that Menispermaceae grew well outside the tropics by the early Paleocene. The endocarps’ affinity with Cissampelideae suggests that diversification of the family was well underway by the earliest Paleocene.
Fil: Jud, Nathan A.. Cornell University; 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 Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Wilf, Peter. State University of Pennsylvania; Estados Unidos
Fil: Gandolfo, Maria Alejandra. Cornell University; Estados Unidos
Materia
DANIAN
EARLY EOCENE
ENDOCARP
HUITRERA FORMATION
LEAF FOSSIL
MENISPERMACEAE
PALEOCENE
SALAMANCA FORMATION
SOUTH AMERICA
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:11336/183708

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network_name_str CONICET Digital (CONICET)
spelling Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)Jud, Nathan A.Iglesias, AriWilf, PeterGandolfo, Maria AlejandraDANIANEARLY EOCENEENDOCARPHUITRERA FORMATIONLEAF FOSSILMENISPERMACEAEPALEOCENESALAMANCA FORMATIONSOUTH AMERICAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Premise of the Study: The fossil record is critical for testing biogeographic hypotheses. Menispermaceae (moonseeds) are a widespread family with a rich fossil record and alternative hypotheses related to their origin and diversification. The family is well-represented in Cenozoic deposits of the northern hemisphere, but the record in the southern hemisphere is sparse. Filling in the southern record of moonseeds will improve our ability to evaluate alternative biogeographic hypotheses. Methods: Fossils were collected from the Salamanca (early Paleocene, Danian) and the Huitrera (early Eocene, Ypresian) formations in Chubut Province, Argentina. We photographed them using light microscopy, epifluorescence, and scanning electron microscopy and compared the fossils with similar extant and fossil Menispermaceae using herbarium specimens and published literature. Key Results: We describe fossil leaves and endocarps attributed to Menispermaceae from Argentinean Patagonia. The leaves are identified to the family, and the endocarps are further identified to the tribe Cissampelideae. The Salamancan endocarp is assigned to the extant genus Stephania. These fossils significantly expand the known range of Menispermaceae in South America, and they include the oldest (ca. 64 Ma) unequivocal evidence of the family worldwide. Conclusions: Our findings highlight the importance of West Gondwana in the evolution of Menispermaceae during the Paleogene. Currently, the fossil record does not discern between a Laurasian or Gondwanan origin; however, it does demonstrate that Menispermaceae grew well outside the tropics by the early Paleocene. The endocarps’ affinity with Cissampelideae suggests that diversification of the family was well underway by the earliest Paleocene.Fil: Jud, Nathan A.. Cornell University; 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 Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Wilf, Peter. State University of Pennsylvania; Estados UnidosFil: Gandolfo, Maria Alejandra. Cornell University; Estados UnidosBotanical Society of America2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/183708Jud, Nathan A.; Iglesias, Ari; Wilf, Peter; Gandolfo, Maria Alejandra; Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina); Botanical Society of America; American Journal of Botany; 105; 5; 5-2018; 927-9420305-73640002-9122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://doi.org/10.1002/ajb2.1092info:eu-repo/semantics/altIdentifier/doi/10.1002/ajb2.1092info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:13Zoai:ri.conicet.gov.ar:11336/183708instacron: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 09:36:13.546CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
title Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
spellingShingle Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
Jud, Nathan A.
DANIAN
EARLY EOCENE
ENDOCARP
HUITRERA FORMATION
LEAF FOSSIL
MENISPERMACEAE
PALEOCENE
SALAMANCA FORMATION
SOUTH AMERICA
title_short Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
title_full Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
title_fullStr Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
title_full_unstemmed Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
title_sort Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina)
dc.creator.none.fl_str_mv Jud, Nathan A.
Iglesias, Ari
Wilf, Peter
Gandolfo, Maria Alejandra
author Jud, Nathan A.
author_facet Jud, Nathan A.
Iglesias, Ari
Wilf, Peter
Gandolfo, Maria Alejandra
author_role author
author2 Iglesias, Ari
Wilf, Peter
Gandolfo, Maria Alejandra
author2_role author
author
author
dc.subject.none.fl_str_mv DANIAN
EARLY EOCENE
ENDOCARP
HUITRERA FORMATION
LEAF FOSSIL
MENISPERMACEAE
PALEOCENE
SALAMANCA FORMATION
SOUTH AMERICA
topic DANIAN
EARLY EOCENE
ENDOCARP
HUITRERA FORMATION
LEAF FOSSIL
MENISPERMACEAE
PALEOCENE
SALAMANCA FORMATION
SOUTH AMERICA
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 fossil record is critical for testing biogeographic hypotheses. Menispermaceae (moonseeds) are a widespread family with a rich fossil record and alternative hypotheses related to their origin and diversification. The family is well-represented in Cenozoic deposits of the northern hemisphere, but the record in the southern hemisphere is sparse. Filling in the southern record of moonseeds will improve our ability to evaluate alternative biogeographic hypotheses. Methods: Fossils were collected from the Salamanca (early Paleocene, Danian) and the Huitrera (early Eocene, Ypresian) formations in Chubut Province, Argentina. We photographed them using light microscopy, epifluorescence, and scanning electron microscopy and compared the fossils with similar extant and fossil Menispermaceae using herbarium specimens and published literature. Key Results: We describe fossil leaves and endocarps attributed to Menispermaceae from Argentinean Patagonia. The leaves are identified to the family, and the endocarps are further identified to the tribe Cissampelideae. The Salamancan endocarp is assigned to the extant genus Stephania. These fossils significantly expand the known range of Menispermaceae in South America, and they include the oldest (ca. 64 Ma) unequivocal evidence of the family worldwide. Conclusions: Our findings highlight the importance of West Gondwana in the evolution of Menispermaceae during the Paleogene. Currently, the fossil record does not discern between a Laurasian or Gondwanan origin; however, it does demonstrate that Menispermaceae grew well outside the tropics by the early Paleocene. The endocarps’ affinity with Cissampelideae suggests that diversification of the family was well underway by the earliest Paleocene.
Fil: Jud, Nathan A.. Cornell University; 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 Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Wilf, Peter. State University of Pennsylvania; Estados Unidos
Fil: Gandolfo, Maria Alejandra. Cornell University; Estados Unidos
description Premise of the Study: The fossil record is critical for testing biogeographic hypotheses. Menispermaceae (moonseeds) are a widespread family with a rich fossil record and alternative hypotheses related to their origin and diversification. The family is well-represented in Cenozoic deposits of the northern hemisphere, but the record in the southern hemisphere is sparse. Filling in the southern record of moonseeds will improve our ability to evaluate alternative biogeographic hypotheses. Methods: Fossils were collected from the Salamanca (early Paleocene, Danian) and the Huitrera (early Eocene, Ypresian) formations in Chubut Province, Argentina. We photographed them using light microscopy, epifluorescence, and scanning electron microscopy and compared the fossils with similar extant and fossil Menispermaceae using herbarium specimens and published literature. Key Results: We describe fossil leaves and endocarps attributed to Menispermaceae from Argentinean Patagonia. The leaves are identified to the family, and the endocarps are further identified to the tribe Cissampelideae. The Salamancan endocarp is assigned to the extant genus Stephania. These fossils significantly expand the known range of Menispermaceae in South America, and they include the oldest (ca. 64 Ma) unequivocal evidence of the family worldwide. Conclusions: Our findings highlight the importance of West Gondwana in the evolution of Menispermaceae during the Paleogene. Currently, the fossil record does not discern between a Laurasian or Gondwanan origin; however, it does demonstrate that Menispermaceae grew well outside the tropics by the early Paleocene. The endocarps’ affinity with Cissampelideae suggests that diversification of the family was well underway by the earliest Paleocene.
publishDate 2018
dc.date.none.fl_str_mv 2018-05
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/11336/183708
Jud, Nathan A.; Iglesias, Ari; Wilf, Peter; Gandolfo, Maria Alejandra; Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina); Botanical Society of America; American Journal of Botany; 105; 5; 5-2018; 927-942
0305-7364
0002-9122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/183708
identifier_str_mv Jud, Nathan A.; Iglesias, Ari; Wilf, Peter; Gandolfo, Maria Alejandra; Fossil moonseeds from the Paleogene of West Gondwana (Patagonia, Argentina); Botanical Society of America; American Journal of Botany; 105; 5; 5-2018; 927-942
0305-7364
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/https://doi.org/10.1002/ajb2.1092
info:eu-repo/semantics/altIdentifier/doi/10.1002/ajb2.1092
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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