Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate

Mostrar todas las versiones(2)

During the Early Paleocene (Danian), Central Patagonia had a warm-temperate climate and was dominated by evergreen coniferous forests. Abundant permineralized conifer woods along with some dicot and palm leaf compressions were found in the Ameghino Petrified Forest, and provide evidence of this type...

Descripción completa

Detalles Bibliográficos
Autores principales: Brea, Mariana, Matheos, Sergio Daniel, Raigemborn, María Sol, Iglesias, Ari, Zucol, Alejandro Fabián, Pramparo, Mercedes Beatriz
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Paleontología
Ciencias Naturales
Argentina
Early paleocene
Paleoecology
Patagonia
Petrified woods
Podocarpoxylon
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96955
https://ri.conicet.gov.ar/11336/80194
http://revistes.ub.edu/index.php/GEOACTA/article/view/105.000001647
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-96955
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Ciencias Naturales
Argentina
Early paleocene
Paleoecology
Patagonia
Petrified woods
Podocarpoxylon
spellingShingle Paleontología
Ciencias Naturales
Argentina
Early paleocene
Paleoecology
Patagonia
Petrified woods
Podocarpoxylon
Brea, Mariana
Matheos, Sergio Daniel
Raigemborn, María Sol
Iglesias, Ari
Zucol, Alejandro Fabián
Pramparo, Mercedes Beatriz
Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate
topic_facet Paleontología
Ciencias Naturales
Argentina
Early paleocene
Paleoecology
Patagonia
Petrified woods
Podocarpoxylon
description During the Early Paleocene (Danian), Central Patagonia had a warm-temperate climate and was dominated by evergreen coniferous forests. Abundant permineralized conifer woods along with some dicot and palm leaf compressions were found in the Ameghino Petrified Forest, and provide evidence of this type of flora. All the permineralized wood and large trunks recovered were assigned to the species <i>Podocarpoxylon mazzonii</i>. An estimated tree height of 17-29m was calculated on the basis of diameter measurements. Based on 14 ring sequences, with a total of 169 rings, the mean ring width and Mean Sensitivity (MS) were 1.23 and 0.19mm respectively. The growth rings are moderately wide, extremely uniform and complacent, indicating that the environment was favourable and constant, and lacked significant stress factors limiting tree growth. Following the quantitative analysis for conifers outlined by Falcon-Lang, the growth ring anatomy of the <i>Podocarpoxylon mazzonii</i> suggests that these trees had an evergreen habit. The combination of the fossil flora, growth ring, and sedimentological analyses suggest that this mostly evergreen coniferous forest developed under warm-temperate conditions and without limiting factors.
format Articulo
Articulo
author Brea, Mariana
Matheos, Sergio Daniel
Raigemborn, María Sol
Iglesias, Ari
Zucol, Alejandro Fabián
Pramparo, Mercedes Beatriz
author_facet Brea, Mariana
Matheos, Sergio Daniel
Raigemborn, María Sol
Iglesias, Ari
Zucol, Alejandro Fabián
Pramparo, Mercedes Beatriz
author_sort Brea, Mariana
title Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate
title_short Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate
title_full Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate
title_fullStr Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate
title_full_unstemmed Paleoecology and paleoenvironments of Podocarp trees in the Ameghino Petrified forest (Golfo San Jorge Basin, Patagonia, Argentina) : Constraints for early Paleogene paleoclimate
title_sort paleoecology and paleoenvironments of podocarp trees in the ameghino petrified forest (golfo san jorge basin, patagonia, argentina) : constraints for early paleogene paleoclimate
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/96955
https://ri.conicet.gov.ar/11336/80194
http://revistes.ub.edu/index.php/GEOACTA/article/view/105.000001647
work_keys_str_mv AT breamariana paleoecologyandpaleoenvironmentsofpodocarptreesintheameghinopetrifiedforestgolfosanjorgebasinpatagoniaargentinaconstraintsforearlypaleogenepaleoclimate
AT matheossergiodaniel paleoecologyandpaleoenvironmentsofpodocarptreesintheameghinopetrifiedforestgolfosanjorgebasinpatagoniaargentinaconstraintsforearlypaleogenepaleoclimate
AT raigembornmariasol paleoecologyandpaleoenvironmentsofpodocarptreesintheameghinopetrifiedforestgolfosanjorgebasinpatagoniaargentinaconstraintsforearlypaleogenepaleoclimate
AT iglesiasari paleoecologyandpaleoenvironmentsofpodocarptreesintheameghinopetrifiedforestgolfosanjorgebasinpatagoniaargentinaconstraintsforearlypaleogenepaleoclimate
AT zucolalejandrofabian paleoecologyandpaleoenvironmentsofpodocarptreesintheameghinopetrifiedforestgolfosanjorgebasinpatagoniaargentinaconstraintsforearlypaleogenepaleoclimate
AT pramparomercedesbeatriz paleoecologyandpaleoenvironmentsofpodocarptreesintheameghinopetrifiedforestgolfosanjorgebasinpatagoniaargentinaconstraintsforearlypaleogenepaleoclimate
bdutipo_str Repositorios
_version_ 1764820492233998338

Ejemplares similares