Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs

The microfloristic study of the El Imperial Formation, Upper Palaeozoic of the San Rafael Basin, is presented. This second contribution comprises the systematic description of thirty-two species of pollen grains, ten taxa of acritarchs and six species of incertae sedis. Most taxa of pollen grains an...

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Detalles Bibliográficos
Autor principal: García, Graciela Beatriz
Publicado: 1996
Materias:
Argentina
Biostratigraphy
El Imperial Formation
Palynology
San Rafael Basin
Systematics
Upper Palaeozoic
acritarch
biostratigraphy
Carboniferous
palynology
Permian
pollen
Argentina, San Rafael Basin
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v33_n1_p7_Garcia
http://hdl.handle.net/20.500.12110/paper_00027014_v33_n1_p7_Garcia
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00027014_v33_n1_p7_Garcia
record_format dspace
spelling paper:paper_00027014_v33_n1_p7_Garcia2023-06-08T14:21:56Z Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs García, Graciela Beatriz Argentina Biostratigraphy El Imperial Formation Palynology San Rafael Basin Systematics Upper Palaeozoic acritarch biostratigraphy Carboniferous palynology Permian pollen Argentina, San Rafael Basin The microfloristic study of the El Imperial Formation, Upper Palaeozoic of the San Rafael Basin, is presented. This second contribution comprises the systematic description of thirty-two species of pollen grains, ten taxa of acritarchs and six species of incertae sedis. Most taxa of pollen grains and incertae sedis have been referred to previously described species, only ten of them are left in open nomenclature. Two species of pollen grains: Limitisporites monosaccoides Bose and Maheshwari and Caheniasaccites elongatus Bose and Kar and another one of incertae sedis: Quadrisporites horridus (Hennelly) Potonié and Lele have been described in Argentina for the first time. One species of pollen grains is here newly combined: Pakhapites ovatus Bose and Kar. Among the acritarchs, only two taxa have been referred to previously established species, whereas the rest has been informally identified because of their paucity. The cuantitative analysis of the palynological levels is exposed and the palaeoecological aspects of the different groups are discussed. Two palynological associations are recognized: the Lower Association, correlated with the Raistrickia - Plicatipollenites Subzone of the Lunbladispora - Potonieisporites Zone, middle Late Carboniferous in age, and the Upper Association, related to the Lower Cristatisporites Zone, regarded as Early Permian. Fil:García, G.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v33_n1_p7_Garcia http://hdl.handle.net/20.500.12110/paper_00027014_v33_n1_p7_Garcia
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
Biostratigraphy
El Imperial Formation
Palynology
San Rafael Basin
Systematics
Upper Palaeozoic
acritarch
biostratigraphy
Carboniferous
palynology
Permian
pollen
Argentina, San Rafael Basin
spellingShingle Argentina
Biostratigraphy
El Imperial Formation
Palynology
San Rafael Basin
Systematics
Upper Palaeozoic
acritarch
biostratigraphy
Carboniferous
palynology
Permian
pollen
Argentina, San Rafael Basin
García, Graciela Beatriz
Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs
topic_facet Argentina
Biostratigraphy
El Imperial Formation
Palynology
San Rafael Basin
Systematics
Upper Palaeozoic
acritarch
biostratigraphy
Carboniferous
palynology
Permian
pollen
Argentina, San Rafael Basin
description The microfloristic study of the El Imperial Formation, Upper Palaeozoic of the San Rafael Basin, is presented. This second contribution comprises the systematic description of thirty-two species of pollen grains, ten taxa of acritarchs and six species of incertae sedis. Most taxa of pollen grains and incertae sedis have been referred to previously described species, only ten of them are left in open nomenclature. Two species of pollen grains: Limitisporites monosaccoides Bose and Maheshwari and Caheniasaccites elongatus Bose and Kar and another one of incertae sedis: Quadrisporites horridus (Hennelly) Potonié and Lele have been described in Argentina for the first time. One species of pollen grains is here newly combined: Pakhapites ovatus Bose and Kar. Among the acritarchs, only two taxa have been referred to previously established species, whereas the rest has been informally identified because of their paucity. The cuantitative analysis of the palynological levels is exposed and the palaeoecological aspects of the different groups are discussed. Two palynological associations are recognized: the Lower Association, correlated with the Raistrickia - Plicatipollenites Subzone of the Lunbladispora - Potonieisporites Zone, middle Late Carboniferous in age, and the Upper Association, related to the Lower Cristatisporites Zone, regarded as Early Permian.
author García, Graciela Beatriz
author_facet García, Graciela Beatriz
author_sort García, Graciela Beatriz
title Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs
title_short Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs
title_full Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs
title_fullStr Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs
title_full_unstemmed Palynology of the El Imperial Formation, Upper Palaeozoic, San Rafael Basin, Argentina. Part II: Pollen grains, Incertae sedis, acritarchs
title_sort palynology of the el imperial formation, upper palaeozoic, san rafael basin, argentina. part ii: pollen grains, incertae sedis, acritarchs
publishDate 1996
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00027014_v33_n1_p7_Garcia
http://hdl.handle.net/20.500.12110/paper_00027014_v33_n1_p7_Garcia
work_keys_str_mv AT garciagracielabeatriz palynologyoftheelimperialformationupperpalaeozoicsanrafaelbasinargentinapartiipollengrainsincertaesedisacritarchs
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