Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance

Autores
Escapa, Ignacio Hernán; Iglesias, Ari; Wilf, Peter; Catalano, Santiago Andres; Caraballo Ortiz, Marcos A.; Cúneo, Néstor Rubén
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Premise of the Study: The fossil record of Agathis historically has been restricted to Australasia. Recently described fossils from the Eocene of Patagonian Argentina showed a broader distribution than found previously, which is reinforced here with a new early Paleocene Agathis species from Patagonia. No previous phylogenetic analyses have included fossil Agathis species. Methods: We describe macrofossils from Patagonia of Agathis vegetative and reproductive organs from the early Danian, as well as leaves with Agathis affinities from the latest Maastrichtian. A total evidence phylogenetic analysis is performed, including the new Danian species together with other fossil species having agathioid affinities. Key Results: Early Danian Agathis immortalis sp. nov. is the oldest definite occurrence of Agathis and one of the most complete Agathis species in the fossil record. Leafy twigs, leaves, pollen cones, pollen, ovuliferous complexes, and seeds show features that are extremely similar to the living genus. Dilwynites pollen grains, associated today with both Wollemia and Agathis and known since the Turonian, were found in situ within the pollen cones. Conclusions: Agathis was present in Patagonia ca. 2 million years after the K-Pg boundary, and the putative latest Cretaceous fossils suggest that the genus survived the K–Pg extinction. Agathis immortalis sp nov. is recovered in a stem position for the genus, while A. zamunerae (Eocene, Patagonia) is recovered as part of the crown. A Mesozoic divergence for the Araucariaceae crown group, previously challenged by molecular divergence estimates, is supported by the combined phylogenetic analyses including the fossil taxa.
Fil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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: Catalano, Santiago Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Caraballo Ortiz, Marcos A.. University of Pennsylvania; Estados Unidos
Fil: Cúneo, Néstor Rubén. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
AGATHIS
ARAUCARIACEAE
CRETACEOUS-PALEOGENE BOUNDARY
DILWYNITES
PALEOCENE
PATAGONIA
SYSTEMATICS
WOLLEMIA
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:11336/87592
Acceder
id CONICETDig_cb39a3f5776fa7a0bc3ef24be5ceb5de
oai_identifier_str oai:ri.conicet.gov.ar:11336/87592
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significanceEscapa, Ignacio HernánIglesias, AriWilf, PeterCatalano, Santiago AndresCaraballo Ortiz, Marcos A.Cúneo, Néstor RubénAGATHISARAUCARIACEAECRETACEOUS-PALEOGENE BOUNDARYDILWYNITESPALEOCENEPATAGONIASYSTEMATICSWOLLEMIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Premise of the Study: The fossil record of Agathis historically has been restricted to Australasia. Recently described fossils from the Eocene of Patagonian Argentina showed a broader distribution than found previously, which is reinforced here with a new early Paleocene Agathis species from Patagonia. No previous phylogenetic analyses have included fossil Agathis species. Methods: We describe macrofossils from Patagonia of Agathis vegetative and reproductive organs from the early Danian, as well as leaves with Agathis affinities from the latest Maastrichtian. A total evidence phylogenetic analysis is performed, including the new Danian species together with other fossil species having agathioid affinities. Key Results: Early Danian Agathis immortalis sp. nov. is the oldest definite occurrence of Agathis and one of the most complete Agathis species in the fossil record. Leafy twigs, leaves, pollen cones, pollen, ovuliferous complexes, and seeds show features that are extremely similar to the living genus. Dilwynites pollen grains, associated today with both Wollemia and Agathis and known since the Turonian, were found in situ within the pollen cones. Conclusions: Agathis was present in Patagonia ca. 2 million years after the K-Pg boundary, and the putative latest Cretaceous fossils suggest that the genus survived the K–Pg extinction. Agathis immortalis sp nov. is recovered in a stem position for the genus, while A. zamunerae (Eocene, Patagonia) is recovered as part of the crown. A Mesozoic divergence for the Araucariaceae crown group, previously challenged by molecular divergence estimates, is supported by the combined phylogenetic analyses including the fossil taxa.Fil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: 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: Catalano, Santiago Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Caraballo Ortiz, Marcos A.. University of Pennsylvania; Estados UnidosFil: Cúneo, Néstor Rubén. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaBotanical Society of America2018-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87592Escapa, Ignacio Hernán; Iglesias, Ari; Wilf, Peter; Catalano, Santiago Andres; Caraballo Ortiz, Marcos A.; et al.; Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance; Botanical Society of America; American Journal of Botany; 105; 8; 8-2018; 1345-13680002-9122CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bsapubs.onlinelibrary.wiley.com/doi/abs/10.1002/ajb2.1127info:eu-repo/semantics/altIdentifier/doi/10.1002/ajb2.1127info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:25:34Zoai:ri.conicet.gov.ar:11336/87592instacron: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 11:25:35.107CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
title Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
spellingShingle Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
Escapa, Ignacio Hernán
AGATHIS
ARAUCARIACEAE
CRETACEOUS-PALEOGENE BOUNDARY
DILWYNITES
PALEOCENE
PATAGONIA
SYSTEMATICS
WOLLEMIA
title_short Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
title_full Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
title_fullStr Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
title_full_unstemmed Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
title_sort Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance
dc.creator.none.fl_str_mv Escapa, Ignacio Hernán
Iglesias, Ari
Wilf, Peter
Catalano, Santiago Andres
Caraballo Ortiz, Marcos A.
Cúneo, Néstor Rubén
author Escapa, Ignacio Hernán
author_facet Escapa, Ignacio Hernán
Iglesias, Ari
Wilf, Peter
Catalano, Santiago Andres
Caraballo Ortiz, Marcos A.
Cúneo, Néstor Rubén
author_role author
author2 Iglesias, Ari
Wilf, Peter
Catalano, Santiago Andres
Caraballo Ortiz, Marcos A.
Cúneo, Néstor Rubén
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv AGATHIS
ARAUCARIACEAE
CRETACEOUS-PALEOGENE BOUNDARY
DILWYNITES
PALEOCENE
PATAGONIA
SYSTEMATICS
WOLLEMIA
topic AGATHIS
ARAUCARIACEAE
CRETACEOUS-PALEOGENE BOUNDARY
DILWYNITES
PALEOCENE
PATAGONIA
SYSTEMATICS
WOLLEMIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Premise of the Study: The fossil record of Agathis historically has been restricted to Australasia. Recently described fossils from the Eocene of Patagonian Argentina showed a broader distribution than found previously, which is reinforced here with a new early Paleocene Agathis species from Patagonia. No previous phylogenetic analyses have included fossil Agathis species. Methods: We describe macrofossils from Patagonia of Agathis vegetative and reproductive organs from the early Danian, as well as leaves with Agathis affinities from the latest Maastrichtian. A total evidence phylogenetic analysis is performed, including the new Danian species together with other fossil species having agathioid affinities. Key Results: Early Danian Agathis immortalis sp. nov. is the oldest definite occurrence of Agathis and one of the most complete Agathis species in the fossil record. Leafy twigs, leaves, pollen cones, pollen, ovuliferous complexes, and seeds show features that are extremely similar to the living genus. Dilwynites pollen grains, associated today with both Wollemia and Agathis and known since the Turonian, were found in situ within the pollen cones. Conclusions: Agathis was present in Patagonia ca. 2 million years after the K-Pg boundary, and the putative latest Cretaceous fossils suggest that the genus survived the K–Pg extinction. Agathis immortalis sp nov. is recovered in a stem position for the genus, while A. zamunerae (Eocene, Patagonia) is recovered as part of the crown. A Mesozoic divergence for the Araucariaceae crown group, previously challenged by molecular divergence estimates, is supported by the combined phylogenetic analyses including the fossil taxa.
Fil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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: Catalano, Santiago Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentina
Fil: Caraballo Ortiz, Marcos A.. University of Pennsylvania; Estados Unidos
Fil: Cúneo, Néstor Rubén. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Premise of the Study: The fossil record of Agathis historically has been restricted to Australasia. Recently described fossils from the Eocene of Patagonian Argentina showed a broader distribution than found previously, which is reinforced here with a new early Paleocene Agathis species from Patagonia. No previous phylogenetic analyses have included fossil Agathis species. Methods: We describe macrofossils from Patagonia of Agathis vegetative and reproductive organs from the early Danian, as well as leaves with Agathis affinities from the latest Maastrichtian. A total evidence phylogenetic analysis is performed, including the new Danian species together with other fossil species having agathioid affinities. Key Results: Early Danian Agathis immortalis sp. nov. is the oldest definite occurrence of Agathis and one of the most complete Agathis species in the fossil record. Leafy twigs, leaves, pollen cones, pollen, ovuliferous complexes, and seeds show features that are extremely similar to the living genus. Dilwynites pollen grains, associated today with both Wollemia and Agathis and known since the Turonian, were found in situ within the pollen cones. Conclusions: Agathis was present in Patagonia ca. 2 million years after the K-Pg boundary, and the putative latest Cretaceous fossils suggest that the genus survived the K–Pg extinction. Agathis immortalis sp nov. is recovered in a stem position for the genus, while A. zamunerae (Eocene, Patagonia) is recovered as part of the crown. A Mesozoic divergence for the Araucariaceae crown group, previously challenged by molecular divergence estimates, is supported by the combined phylogenetic analyses including the fossil taxa.
publishDate 2018
dc.date.none.fl_str_mv 2018-08
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/11336/87592
Escapa, Ignacio Hernán; Iglesias, Ari; Wilf, Peter; Catalano, Santiago Andres; Caraballo Ortiz, Marcos A.; et al.; Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance; Botanical Society of America; American Journal of Botany; 105; 8; 8-2018; 1345-1368
0002-9122
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87592
identifier_str_mv Escapa, Ignacio Hernán; Iglesias, Ari; Wilf, Peter; Catalano, Santiago Andres; Caraballo Ortiz, Marcos A.; et al.; Agathis trees of Patagonia's Cretaceous-Paleogene death landscapes and their evolutionary significance; Botanical Society of America; American Journal of Botany; 105; 8; 8-2018; 1345-1368
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://bsapubs.onlinelibrary.wiley.com/doi/abs/10.1002/ajb2.1127
info:eu-repo/semantics/altIdentifier/doi/10.1002/ajb2.1127
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
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 12.982451

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