Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America
- Autores
- Strömberg, Caroline A. E.; Dunn, Regan E.; Madden, Richard H.; Kohn, Matthew J.; Carlini, Alfredo Armando
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The evolution of high-crowned cheek teeth (hypsodonty) in herbivorous mammals during the late Cenozoic is classically regarded as an adaptive response to the near-global spread of grass-dominated habitats. Precocious hypsodonty in middle Eocene (B38 million years (Myr) ago) faunas from Patagonia, South America, is therefore thought to signal Earth’s first grasslands, 20 million years earlier than elsewhere. Here, using a high-resolution, 43–18 million-year record of plant silica (phytoliths) from Patagonia, we show that although open-habitat grasses existed in southern South America since the middle Eocene (B40 Myr ago), they were minor floral components in overall forested habitats between 40 and 18 Myr ago. Thus, distinctly different, continent-specific environmental conditions (arid grasslands versus ash-laden forests) triggered convergent cheek–tooth evolution in Cenozoic herbivores. Hypsodonty evolution is an important example where the present is an insufficient key to the past, and contextual information from fossils is vital for understanding processes of adaptation.
Fil: Strömberg, Caroline A. E.. University of Washington; Estados Unidos
Fil: Dunn, Regan E.. University of Washington; Estados Unidos
Fil: Madden, Richard H.. University Of Chicago; Estados Unidos
Fil: Kohn, Matthew J.. Boise State University; Estados Unidos
Fil: Carlini, Alfredo Armando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina - Materia
-
Phytolith
GrassLands
Paleogene
South America - 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:11336/13581
Ver los metadatos del registro completo
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Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South AmericaStrömberg, Caroline A. E.Dunn, Regan E.Madden, Richard H.Kohn, Matthew J.Carlini, Alfredo ArmandoPhytolithGrassLandsPaleogeneSouth Americahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The evolution of high-crowned cheek teeth (hypsodonty) in herbivorous mammals during the late Cenozoic is classically regarded as an adaptive response to the near-global spread of grass-dominated habitats. Precocious hypsodonty in middle Eocene (B38 million years (Myr) ago) faunas from Patagonia, South America, is therefore thought to signal Earth’s first grasslands, 20 million years earlier than elsewhere. Here, using a high-resolution, 43–18 million-year record of plant silica (phytoliths) from Patagonia, we show that although open-habitat grasses existed in southern South America since the middle Eocene (B40 Myr ago), they were minor floral components in overall forested habitats between 40 and 18 Myr ago. Thus, distinctly different, continent-specific environmental conditions (arid grasslands versus ash-laden forests) triggered convergent cheek–tooth evolution in Cenozoic herbivores. Hypsodonty evolution is an important example where the present is an insufficient key to the past, and contextual information from fossils is vital for understanding processes of adaptation.Fil: Strömberg, Caroline A. E.. University of Washington; Estados UnidosFil: Dunn, Regan E.. University of Washington; Estados UnidosFil: Madden, Richard H.. University Of Chicago; Estados UnidosFil: Kohn, Matthew J.. Boise State University; Estados UnidosFil: Carlini, Alfredo Armando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; ArgentinaMacmillan Publishers2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/13581Strömberg, Caroline A. E.; Dunn, Regan E.; Madden, Richard H.; Kohn, Matthew J.; Carlini, Alfredo Armando; Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America; Macmillan Publishers; Nature Communications; 4; 2-2013; 1-8; 14782041-1723enginfo:eu-repo/semantics/altIdentifier/doi/10.1038/ncomms2508info:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/ncomms2508info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:36Zoai:ri.conicet.gov.ar:11336/13581instacron: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 09:33:36.74CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
title |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
spellingShingle |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America Strömberg, Caroline A. E. Phytolith GrassLands Paleogene South America |
title_short |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
title_full |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
title_fullStr |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
title_full_unstemmed |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
title_sort |
Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America |
dc.creator.none.fl_str_mv |
Strömberg, Caroline A. E. Dunn, Regan E. Madden, Richard H. Kohn, Matthew J. Carlini, Alfredo Armando |
author |
Strömberg, Caroline A. E. |
author_facet |
Strömberg, Caroline A. E. Dunn, Regan E. Madden, Richard H. Kohn, Matthew J. Carlini, Alfredo Armando |
author_role |
author |
author2 |
Dunn, Regan E. Madden, Richard H. Kohn, Matthew J. Carlini, Alfredo Armando |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Phytolith GrassLands Paleogene South America |
topic |
Phytolith GrassLands Paleogene 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 |
The evolution of high-crowned cheek teeth (hypsodonty) in herbivorous mammals during the late Cenozoic is classically regarded as an adaptive response to the near-global spread of grass-dominated habitats. Precocious hypsodonty in middle Eocene (B38 million years (Myr) ago) faunas from Patagonia, South America, is therefore thought to signal Earth’s first grasslands, 20 million years earlier than elsewhere. Here, using a high-resolution, 43–18 million-year record of plant silica (phytoliths) from Patagonia, we show that although open-habitat grasses existed in southern South America since the middle Eocene (B40 Myr ago), they were minor floral components in overall forested habitats between 40 and 18 Myr ago. Thus, distinctly different, continent-specific environmental conditions (arid grasslands versus ash-laden forests) triggered convergent cheek–tooth evolution in Cenozoic herbivores. Hypsodonty evolution is an important example where the present is an insufficient key to the past, and contextual information from fossils is vital for understanding processes of adaptation. Fil: Strömberg, Caroline A. E.. University of Washington; Estados Unidos Fil: Dunn, Regan E.. University of Washington; Estados Unidos Fil: Madden, Richard H.. University Of Chicago; Estados Unidos Fil: Kohn, Matthew J.. Boise State University; Estados Unidos Fil: Carlini, Alfredo Armando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento Científico de Paleontología de Vertebrados; Argentina |
description |
The evolution of high-crowned cheek teeth (hypsodonty) in herbivorous mammals during the late Cenozoic is classically regarded as an adaptive response to the near-global spread of grass-dominated habitats. Precocious hypsodonty in middle Eocene (B38 million years (Myr) ago) faunas from Patagonia, South America, is therefore thought to signal Earth’s first grasslands, 20 million years earlier than elsewhere. Here, using a high-resolution, 43–18 million-year record of plant silica (phytoliths) from Patagonia, we show that although open-habitat grasses existed in southern South America since the middle Eocene (B40 Myr ago), they were minor floral components in overall forested habitats between 40 and 18 Myr ago. Thus, distinctly different, continent-specific environmental conditions (arid grasslands versus ash-laden forests) triggered convergent cheek–tooth evolution in Cenozoic herbivores. Hypsodonty evolution is an important example where the present is an insufficient key to the past, and contextual information from fossils is vital for understanding processes of adaptation. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02 |
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/11336/13581 Strömberg, Caroline A. E.; Dunn, Regan E.; Madden, Richard H.; Kohn, Matthew J.; Carlini, Alfredo Armando; Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America; Macmillan Publishers; Nature Communications; 4; 2-2013; 1-8; 1478 2041-1723 |
url |
http://hdl.handle.net/11336/13581 |
identifier_str_mv |
Strömberg, Caroline A. E.; Dunn, Regan E.; Madden, Richard H.; Kohn, Matthew J.; Carlini, Alfredo Armando; Decoupling the spread of grasslands from the evolution of grazer-type herbivores in South America; Macmillan Publishers; Nature Communications; 4; 2-2013; 1-8; 1478 2041-1723 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1038/ncomms2508 info:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/ncomms2508 |
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 |
Macmillan Publishers |
publisher.none.fl_str_mv |
Macmillan Publishers |
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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1844613034020962304 |
score |
13.070432 |