Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina

The subcosmopolitan and aquatic monocot family Potamogetonaceae Berch. and J. Presl 1823 comprises extant and fossil genera. Its known fossil record is composed mainly of fruit remains, and it comes only from Eocene to Pliocene sediments of the Northern Hemisphere (Europe, Saudi Arabia, and China)....

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Autores principales: Gandolfo, M.A., Del C. Zamaloa, M., Cúneo, N.R., Archangelsky, A.
Formato: JOUR
Materias:
Argentina
Fossil
Fruits
Infructescences
Monocots
Pollen
Potamogetonaceae
Eocene
fossil record
fruit
monocotyledon
Northern Hemisphere
outcrop
palynology
Pliocene
Patagonia
South America
Liliopsida
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10585893_v170_n3_p419_Gandolfo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10585893_v170_n3_p419_Gandolfo
record_format dspace
spelling todo:paper_10585893_v170_n3_p419_Gandolfo2023-10-03T16:00:58Z Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina Gandolfo, M.A. Del C. Zamaloa, M. Cúneo, N.R. Archangelsky, A. Argentina Fossil Fruits Infructescences Monocots Pollen Potamogetonaceae Eocene fossil record fruit monocotyledon Northern Hemisphere outcrop palynology Pliocene Patagonia South America Liliopsida Potamogetonaceae The subcosmopolitan and aquatic monocot family Potamogetonaceae Berch. and J. Presl 1823 comprises extant and fossil genera. Its known fossil record is composed mainly of fruit remains, and it comes only from Eocene to Pliocene sediments of the Northern Hemisphere (Europe, Saudi Arabia, and China). Recently, several fruits sharing characters with living and fossil Potamogetonaceae genera have been found within the Paleogene Baibián Beds, Chubut, Patagonia, Argentina. Fossils were collected at the Puesto Baibián locality, which outcrops at the eastern sector of the Sierra de La Colonia. Fossils are impressions/compressions of infructescences and isolated fruits and seeds preserved as molds and casts. The infructescences are probably racemes bearing fruits placed most likely in whorls of four each. Isolated fruits are small one-seeded bisymmetrical endocarps. Palynological studies of the beds show the presence of an assemblage similar to those found in sediments of the Northern Hemisphere where Potamogetonaceae fossil fruits were previously recorded. This report constitutes the first fossil record of Potamogetonaceae for the Southern Hemisphere. © 2009 by The University ot Chicago. All rights reserved. Fil:Gandolfo, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Del C. Zamaloa, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cúneo, N.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Archangelsky, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10585893_v170_n3_p419_Gandolfo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Fossil
Fruits
Infructescences
Monocots
Pollen
Potamogetonaceae
Eocene
fossil record
fruit
monocotyledon
Northern Hemisphere
outcrop
palynology
Pliocene
Patagonia
South America
Liliopsida
Potamogetonaceae
spellingShingle Argentina
Fossil
Fruits
Infructescences
Monocots
Pollen
Potamogetonaceae
Eocene
fossil record
fruit
monocotyledon
Northern Hemisphere
outcrop
palynology
Pliocene
Patagonia
South America
Liliopsida
Potamogetonaceae
Gandolfo, M.A.
Del C. Zamaloa, M.
Cúneo, N.R.
Archangelsky, A.
Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina
topic_facet Argentina
Fossil
Fruits
Infructescences
Monocots
Pollen
Potamogetonaceae
Eocene
fossil record
fruit
monocotyledon
Northern Hemisphere
outcrop
palynology
Pliocene
Patagonia
South America
Liliopsida
Potamogetonaceae
description The subcosmopolitan and aquatic monocot family Potamogetonaceae Berch. and J. Presl 1823 comprises extant and fossil genera. Its known fossil record is composed mainly of fruit remains, and it comes only from Eocene to Pliocene sediments of the Northern Hemisphere (Europe, Saudi Arabia, and China). Recently, several fruits sharing characters with living and fossil Potamogetonaceae genera have been found within the Paleogene Baibián Beds, Chubut, Patagonia, Argentina. Fossils were collected at the Puesto Baibián locality, which outcrops at the eastern sector of the Sierra de La Colonia. Fossils are impressions/compressions of infructescences and isolated fruits and seeds preserved as molds and casts. The infructescences are probably racemes bearing fruits placed most likely in whorls of four each. Isolated fruits are small one-seeded bisymmetrical endocarps. Palynological studies of the beds show the presence of an assemblage similar to those found in sediments of the Northern Hemisphere where Potamogetonaceae fossil fruits were previously recorded. This report constitutes the first fossil record of Potamogetonaceae for the Southern Hemisphere. © 2009 by The University ot Chicago. All rights reserved.
format JOUR
author Gandolfo, M.A.
Del C. Zamaloa, M.
Cúneo, N.R.
Archangelsky, A.
author_facet Gandolfo, M.A.
Del C. Zamaloa, M.
Cúneo, N.R.
Archangelsky, A.
author_sort Gandolfo, M.A.
title Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina
title_short Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina
title_full Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina
title_fullStr Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina
title_full_unstemmed Potamogetonaceae fossil fruits from the tertiary of Patagonia, Argentina
title_sort potamogetonaceae fossil fruits from the tertiary of patagonia, argentina
url http://hdl.handle.net/20.500.12110/paper_10585893_v170_n3_p419_Gandolfo
work_keys_str_mv AT gandolfoma potamogetonaceaefossilfruitsfromthetertiaryofpatagoniaargentina
AT delczamaloam potamogetonaceaefossilfruitsfromthetertiaryofpatagoniaargentina
AT cuneonr potamogetonaceaefossilfruitsfromthetertiaryofpatagoniaargentina
AT archangelskya potamogetonaceaefossilfruitsfromthetertiaryofpatagoniaargentina
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