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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/87592
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/87592 |
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3498 |
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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 Técnicas2025-09-29T09:56:24Zoai: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:34982025-09-29 09:56:24.442CONICET 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 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf application/pdf application/pdf application/pdf |
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Botanical Society of America |
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Botanical Society of America |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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