A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru

Autores
Antoine, Pierre Olivier; Abello, María Alejandra; Adnet, Sylvain; Altamirano Sierra, Ali J.; Baby, Patrice; Billet, Guillaume; Boivin, Myriam; Calderón, Ysabel; Candela, Adriana Magdalena; Chabain, Jules; Corfu, Fernando; Croft, Darin; Ganerød, Morgan; Jaramillo, Carlos; Klaus, Sebastian; Marivaux, Laurent; Navarrete, Rosa E.; Orliac, Maeva Judith; Parra, Francisco; Pérez, María Encarnación; Pujos, François Roger Francis; Rage, Jean-Claude; Ravel, Anthony; Robinet, Celine; Roddaz, Martin; Tejada Lara, Julia Victoria; Vélez Juarbe, Jorge; Wesselingh, Frank P.; Salas Gismondi, Rodolfo
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We provide a synopsis of ~. 60 million years of life history in Neotropical lowlands, based on a comprehensive survey of the Cenozoic deposits along the Quebrada Cachiyacu near Contamana in Peruvian Amazonia. The 34 fossil-bearing localities identified have yielded a diversity of fossil remains, including vertebrates, mollusks, arthropods, plant fossils, and microorganisms, ranging from the early Paleocene to the late Miocene-?Pliocene (>. 20 successive levels). This Cenozoic series includes the base of the Huchpayacu Formation (Fm.; early Paleocene; lacustrine/fluvial environments; charophyte-dominated assemblage), the Pozo Fm. (middle + ?late Eocene; marine then freshwater environments; most diversified biomes), and complete sections for the Chambira Fm. (late Oligocene-late early Miocene; freshwater environments; vertebrate-dominated faunas), the Pebas Fm. (late early to early late Miocene; freshwater environments with an increasing marine influence; excellent fossil record), and Ipururo Fm. (late Miocene-?Pliocene; fully fluvial environments; virtually no fossils preserved). At least 485 fossil species are recognized in the Contamana area (~. 250 'plants', ~. 212 animals, and 23 foraminifera). Based on taxonomic lists from each stratigraphic interval, high-level taxonomic diversity remained fairly constant throughout the middle Eocene-Miocene interval (8-12 classes), ordinal diversity fluctuated to a greater degree, and family/species diversity generally declined, with a drastic drop in the early Miocene. The Paleocene-?Pliocene fossil assemblages from Contamana attest at least to four biogeographic histories inherited from (i) Mesozoic Gondwanan times, (ii) the Panamerican realm prior to (iii) the time of South America's Cenozoic "splendid isolation", and (iv) Neotropical ecosystems in the Americas. No direct evidence of any North American terrestrial immigrant has yet been recognized in the Miocene record at Contamana.
Fil: Antoine, Pierre Olivier. Université de Montpellier; Francia
Fil: Abello, María Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo de la Plata; Argentina
Fil: Adnet, Sylvain. Université de Montpellier; Francia
Fil: Altamirano Sierra, Ali J.. Universidad Nacional Mayor de San Marcos; Perú
Fil: Baby, Patrice. Université de Toulouse; Francia. Institut de Recherche Pour Le Développement; Perú
Fil: Billet, Guillaume. Muséum National d'Histoire Naturelle; Francia
Fil: Boivin, Myriam. Université de Montpellier; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Calderón, Ysabel. Université de Toulouse; Francia. Institut de Recherche Pour Le Développement; Perú
Fil: Candela, Adriana Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Chabain, Jules. Université de Montpellier; Francia
Fil: Corfu, Fernando. University of Oslo; Noruega
Fil: Croft, Darin. Case Western Reserve University; Estados Unidos
Fil: Ganerød, Morgan. Norges Geologiske Undersekelse; Noruega
Fil: Jaramillo, Carlos. Smithsonian Tropical Research Institute; Panamá
Fil: Klaus, Sebastian. Goethe Universitat Frankfurt; Alemania
Fil: Marivaux, Laurent. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Université de Montpellier; Francia
Fil: Navarrete, Rosa E.. Paleosedes E. U.; Colombia
Fil: Orliac, Maeva Judith. Université de Montpellier; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Parra, Francisco. Université de Toulouse; Francia. Paleosedes E. U.; Colombia
Fil: Pérez, María Encarnación. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Rage, Jean-Claude. Muséum National d'Histoire Naturelle; Francia
Fil: Ravel, Anthony. Université Montpellier II; Francia
Fil: Robinet, Celine. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Université Montpellier II; Francia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Roddaz, Martin. Université de Toulouse; Francia
Fil: Tejada Lara, Julia Victoria. American Museum of Natural History; Estados Unidos. Universidad Nacional Mayor de San Marcos; Perú
Fil: Vélez Juarbe, Jorge. National Museum of Natural History; Estados Unidos
Fil: Wesselingh, Frank P.. Naturalis Biodiversity Center; Países Bajos
Fil: Salas Gismondi, Rodolfo. Université de Montpellier; Francia. Universidad Nacional Mayor de San Marcos; Perú
Materia
FOSSIL RECORD
PALEOBIOLOGY
PALEOGEOGRAPHY
SOUTH AMERICA
STRATIGRAPHY
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:11336/99030

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network_name_str CONICET Digital (CONICET)
spelling A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern PeruAntoine, Pierre OlivierAbello, María AlejandraAdnet, SylvainAltamirano Sierra, Ali J.Baby, PatriceBillet, GuillaumeBoivin, MyriamCalderón, YsabelCandela, Adriana MagdalenaChabain, JulesCorfu, FernandoCroft, DarinGanerød, MorganJaramillo, CarlosKlaus, SebastianMarivaux, LaurentNavarrete, Rosa E.Orliac, Maeva JudithParra, FranciscoPérez, María EncarnaciónPujos, François Roger FrancisRage, Jean-ClaudeRavel, AnthonyRobinet, CelineRoddaz, MartinTejada Lara, Julia VictoriaVélez Juarbe, JorgeWesselingh, Frank P.Salas Gismondi, RodolfoFOSSIL RECORDPALEOBIOLOGYPALEOGEOGRAPHYSOUTH AMERICASTRATIGRAPHYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We provide a synopsis of ~. 60 million years of life history in Neotropical lowlands, based on a comprehensive survey of the Cenozoic deposits along the Quebrada Cachiyacu near Contamana in Peruvian Amazonia. The 34 fossil-bearing localities identified have yielded a diversity of fossil remains, including vertebrates, mollusks, arthropods, plant fossils, and microorganisms, ranging from the early Paleocene to the late Miocene-?Pliocene (>. 20 successive levels). This Cenozoic series includes the base of the Huchpayacu Formation (Fm.; early Paleocene; lacustrine/fluvial environments; charophyte-dominated assemblage), the Pozo Fm. (middle + ?late Eocene; marine then freshwater environments; most diversified biomes), and complete sections for the Chambira Fm. (late Oligocene-late early Miocene; freshwater environments; vertebrate-dominated faunas), the Pebas Fm. (late early to early late Miocene; freshwater environments with an increasing marine influence; excellent fossil record), and Ipururo Fm. (late Miocene-?Pliocene; fully fluvial environments; virtually no fossils preserved). At least 485 fossil species are recognized in the Contamana area (~. 250 'plants', ~. 212 animals, and 23 foraminifera). Based on taxonomic lists from each stratigraphic interval, high-level taxonomic diversity remained fairly constant throughout the middle Eocene-Miocene interval (8-12 classes), ordinal diversity fluctuated to a greater degree, and family/species diversity generally declined, with a drastic drop in the early Miocene. The Paleocene-?Pliocene fossil assemblages from Contamana attest at least to four biogeographic histories inherited from (i) Mesozoic Gondwanan times, (ii) the Panamerican realm prior to (iii) the time of South America's Cenozoic "splendid isolation", and (iv) Neotropical ecosystems in the Americas. No direct evidence of any North American terrestrial immigrant has yet been recognized in the Miocene record at Contamana.Fil: Antoine, Pierre Olivier. Université de Montpellier; FranciaFil: Abello, María Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo de la Plata; ArgentinaFil: Adnet, Sylvain. Université de Montpellier; FranciaFil: Altamirano Sierra, Ali J.. Universidad Nacional Mayor de San Marcos; PerúFil: Baby, Patrice. Université de Toulouse; Francia. Institut de Recherche Pour Le Développement; PerúFil: Billet, Guillaume. Muséum National d'Histoire Naturelle; FranciaFil: Boivin, Myriam. Université de Montpellier; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Calderón, Ysabel. Université de Toulouse; Francia. Institut de Recherche Pour Le Développement; PerúFil: Candela, Adriana Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Chabain, Jules. Université de Montpellier; FranciaFil: Corfu, Fernando. University of Oslo; NoruegaFil: Croft, Darin. Case Western Reserve University; Estados UnidosFil: Ganerød, Morgan. Norges Geologiske Undersekelse; NoruegaFil: Jaramillo, Carlos. Smithsonian Tropical Research Institute; PanamáFil: Klaus, Sebastian. Goethe Universitat Frankfurt; AlemaniaFil: Marivaux, Laurent. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Université de Montpellier; FranciaFil: Navarrete, Rosa E.. Paleosedes E. U.; ColombiaFil: Orliac, Maeva Judith. Université de Montpellier; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Parra, Francisco. Université de Toulouse; Francia. Paleosedes E. U.; ColombiaFil: Pérez, María Encarnación. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Rage, Jean-Claude. Muséum National d'Histoire Naturelle; FranciaFil: Ravel, Anthony. Université Montpellier II; FranciaFil: Robinet, Celine. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Université Montpellier II; Francia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Roddaz, Martin. Université de Toulouse; FranciaFil: Tejada Lara, Julia Victoria. American Museum of Natural History; Estados Unidos. Universidad Nacional Mayor de San Marcos; PerúFil: Vélez Juarbe, Jorge. National Museum of Natural History; Estados UnidosFil: Wesselingh, Frank P.. Naturalis Biodiversity Center; Países BajosFil: Salas Gismondi, Rodolfo. Université de Montpellier; Francia. Universidad Nacional Mayor de San Marcos; PerúElsevier Science2016-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/99030Antoine, Pierre Olivier; Abello, María Alejandra; Adnet, Sylvain; Altamirano Sierra, Ali J.; Baby, Patrice; et al.; A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru; Elsevier Science; Gondwana Research; 31; 3-2016; 30-591342-937XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.gr.2015.11.001info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1342937X15002543?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:03Zoai:ri.conicet.gov.ar:11336/99030instacron: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:34982025-09-03 10:09:04.025CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
title A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
spellingShingle A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
Antoine, Pierre Olivier
FOSSIL RECORD
PALEOBIOLOGY
PALEOGEOGRAPHY
SOUTH AMERICA
STRATIGRAPHY
title_short A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
title_full A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
title_fullStr A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
title_full_unstemmed A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
title_sort A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru
dc.creator.none.fl_str_mv Antoine, Pierre Olivier
Abello, María Alejandra
Adnet, Sylvain
Altamirano Sierra, Ali J.
Baby, Patrice
Billet, Guillaume
Boivin, Myriam
Calderón, Ysabel
Candela, Adriana Magdalena
Chabain, Jules
Corfu, Fernando
Croft, Darin
Ganerød, Morgan
Jaramillo, Carlos
Klaus, Sebastian
Marivaux, Laurent
Navarrete, Rosa E.
Orliac, Maeva Judith
Parra, Francisco
Pérez, María Encarnación
Pujos, François Roger Francis
Rage, Jean-Claude
Ravel, Anthony
Robinet, Celine
Roddaz, Martin
Tejada Lara, Julia Victoria
Vélez Juarbe, Jorge
Wesselingh, Frank P.
Salas Gismondi, Rodolfo
author Antoine, Pierre Olivier
author_facet Antoine, Pierre Olivier
Abello, María Alejandra
Adnet, Sylvain
Altamirano Sierra, Ali J.
Baby, Patrice
Billet, Guillaume
Boivin, Myriam
Calderón, Ysabel
Candela, Adriana Magdalena
Chabain, Jules
Corfu, Fernando
Croft, Darin
Ganerød, Morgan
Jaramillo, Carlos
Klaus, Sebastian
Marivaux, Laurent
Navarrete, Rosa E.
Orliac, Maeva Judith
Parra, Francisco
Pérez, María Encarnación
Pujos, François Roger Francis
Rage, Jean-Claude
Ravel, Anthony
Robinet, Celine
Roddaz, Martin
Tejada Lara, Julia Victoria
Vélez Juarbe, Jorge
Wesselingh, Frank P.
Salas Gismondi, Rodolfo
author_role author
author2 Abello, María Alejandra
Adnet, Sylvain
Altamirano Sierra, Ali J.
Baby, Patrice
Billet, Guillaume
Boivin, Myriam
Calderón, Ysabel
Candela, Adriana Magdalena
Chabain, Jules
Corfu, Fernando
Croft, Darin
Ganerød, Morgan
Jaramillo, Carlos
Klaus, Sebastian
Marivaux, Laurent
Navarrete, Rosa E.
Orliac, Maeva Judith
Parra, Francisco
Pérez, María Encarnación
Pujos, François Roger Francis
Rage, Jean-Claude
Ravel, Anthony
Robinet, Celine
Roddaz, Martin
Tejada Lara, Julia Victoria
Vélez Juarbe, Jorge
Wesselingh, Frank P.
Salas Gismondi, Rodolfo
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv FOSSIL RECORD
PALEOBIOLOGY
PALEOGEOGRAPHY
SOUTH AMERICA
STRATIGRAPHY
topic FOSSIL RECORD
PALEOBIOLOGY
PALEOGEOGRAPHY
SOUTH AMERICA
STRATIGRAPHY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We provide a synopsis of ~. 60 million years of life history in Neotropical lowlands, based on a comprehensive survey of the Cenozoic deposits along the Quebrada Cachiyacu near Contamana in Peruvian Amazonia. The 34 fossil-bearing localities identified have yielded a diversity of fossil remains, including vertebrates, mollusks, arthropods, plant fossils, and microorganisms, ranging from the early Paleocene to the late Miocene-?Pliocene (>. 20 successive levels). This Cenozoic series includes the base of the Huchpayacu Formation (Fm.; early Paleocene; lacustrine/fluvial environments; charophyte-dominated assemblage), the Pozo Fm. (middle + ?late Eocene; marine then freshwater environments; most diversified biomes), and complete sections for the Chambira Fm. (late Oligocene-late early Miocene; freshwater environments; vertebrate-dominated faunas), the Pebas Fm. (late early to early late Miocene; freshwater environments with an increasing marine influence; excellent fossil record), and Ipururo Fm. (late Miocene-?Pliocene; fully fluvial environments; virtually no fossils preserved). At least 485 fossil species are recognized in the Contamana area (~. 250 'plants', ~. 212 animals, and 23 foraminifera). Based on taxonomic lists from each stratigraphic interval, high-level taxonomic diversity remained fairly constant throughout the middle Eocene-Miocene interval (8-12 classes), ordinal diversity fluctuated to a greater degree, and family/species diversity generally declined, with a drastic drop in the early Miocene. The Paleocene-?Pliocene fossil assemblages from Contamana attest at least to four biogeographic histories inherited from (i) Mesozoic Gondwanan times, (ii) the Panamerican realm prior to (iii) the time of South America's Cenozoic "splendid isolation", and (iv) Neotropical ecosystems in the Americas. No direct evidence of any North American terrestrial immigrant has yet been recognized in the Miocene record at Contamana.
Fil: Antoine, Pierre Olivier. Université de Montpellier; Francia
Fil: Abello, María Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo de la Plata; Argentina
Fil: Adnet, Sylvain. Université de Montpellier; Francia
Fil: Altamirano Sierra, Ali J.. Universidad Nacional Mayor de San Marcos; Perú
Fil: Baby, Patrice. Université de Toulouse; Francia. Institut de Recherche Pour Le Développement; Perú
Fil: Billet, Guillaume. Muséum National d'Histoire Naturelle; Francia
Fil: Boivin, Myriam. Université de Montpellier; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Calderón, Ysabel. Université de Toulouse; Francia. Institut de Recherche Pour Le Développement; Perú
Fil: Candela, Adriana Magdalena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Chabain, Jules. Université de Montpellier; Francia
Fil: Corfu, Fernando. University of Oslo; Noruega
Fil: Croft, Darin. Case Western Reserve University; Estados Unidos
Fil: Ganerød, Morgan. Norges Geologiske Undersekelse; Noruega
Fil: Jaramillo, Carlos. Smithsonian Tropical Research Institute; Panamá
Fil: Klaus, Sebastian. Goethe Universitat Frankfurt; Alemania
Fil: Marivaux, Laurent. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Université de Montpellier; Francia
Fil: Navarrete, Rosa E.. Paleosedes E. U.; Colombia
Fil: Orliac, Maeva Judith. Université de Montpellier; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Parra, Francisco. Université de Toulouse; Francia. Paleosedes E. U.; Colombia
Fil: Pérez, María Encarnación. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Rage, Jean-Claude. Muséum National d'Histoire Naturelle; Francia
Fil: Ravel, Anthony. Université Montpellier II; Francia
Fil: Robinet, Celine. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Université Montpellier II; Francia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Roddaz, Martin. Université de Toulouse; Francia
Fil: Tejada Lara, Julia Victoria. American Museum of Natural History; Estados Unidos. Universidad Nacional Mayor de San Marcos; Perú
Fil: Vélez Juarbe, Jorge. National Museum of Natural History; Estados Unidos
Fil: Wesselingh, Frank P.. Naturalis Biodiversity Center; Países Bajos
Fil: Salas Gismondi, Rodolfo. Université de Montpellier; Francia. Universidad Nacional Mayor de San Marcos; Perú
description We provide a synopsis of ~. 60 million years of life history in Neotropical lowlands, based on a comprehensive survey of the Cenozoic deposits along the Quebrada Cachiyacu near Contamana in Peruvian Amazonia. The 34 fossil-bearing localities identified have yielded a diversity of fossil remains, including vertebrates, mollusks, arthropods, plant fossils, and microorganisms, ranging from the early Paleocene to the late Miocene-?Pliocene (>. 20 successive levels). This Cenozoic series includes the base of the Huchpayacu Formation (Fm.; early Paleocene; lacustrine/fluvial environments; charophyte-dominated assemblage), the Pozo Fm. (middle + ?late Eocene; marine then freshwater environments; most diversified biomes), and complete sections for the Chambira Fm. (late Oligocene-late early Miocene; freshwater environments; vertebrate-dominated faunas), the Pebas Fm. (late early to early late Miocene; freshwater environments with an increasing marine influence; excellent fossil record), and Ipururo Fm. (late Miocene-?Pliocene; fully fluvial environments; virtually no fossils preserved). At least 485 fossil species are recognized in the Contamana area (~. 250 'plants', ~. 212 animals, and 23 foraminifera). Based on taxonomic lists from each stratigraphic interval, high-level taxonomic diversity remained fairly constant throughout the middle Eocene-Miocene interval (8-12 classes), ordinal diversity fluctuated to a greater degree, and family/species diversity generally declined, with a drastic drop in the early Miocene. The Paleocene-?Pliocene fossil assemblages from Contamana attest at least to four biogeographic histories inherited from (i) Mesozoic Gondwanan times, (ii) the Panamerican realm prior to (iii) the time of South America's Cenozoic "splendid isolation", and (iv) Neotropical ecosystems in the Americas. No direct evidence of any North American terrestrial immigrant has yet been recognized in the Miocene record at Contamana.
publishDate 2016
dc.date.none.fl_str_mv 2016-03
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/11336/99030
Antoine, Pierre Olivier; Abello, María Alejandra; Adnet, Sylvain; Altamirano Sierra, Ali J.; Baby, Patrice; et al.; A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru; Elsevier Science; Gondwana Research; 31; 3-2016; 30-59
1342-937X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99030
identifier_str_mv Antoine, Pierre Olivier; Abello, María Alejandra; Adnet, Sylvain; Altamirano Sierra, Ali J.; Baby, Patrice; et al.; A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru; Elsevier Science; Gondwana Research; 31; 3-2016; 30-59
1342-937X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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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/
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dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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