First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species

Fossil plant remains found in the Tarija Formation cropping out at the Aguas Blancas creek, Aguaragüe range, Salta Province, Argentina, are analysed and illustrated for the first time. Two new species, Malanzania starckii (Lycophyte) and Grumosisporites delpapae (trilete spore) are described. Molds...

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Autor principal:	di Pasquo, M.
Formato:	JOUR
Materias:	Argentina Chronology Grumosisporites delpapae sp. nov. Malanzania starckii sp. nov. Megafloras Palaeoenvironment Palynofloras Pennsylvanian Salta Tarija Formation chronology flora fossil assemblage fossil record new record new species paleoenvironment palynology Pennsylvania Salta [Argentina] United States Acritarcha algae Chitinozoa Cordaites Dictyotriletes bireticulatus Equisetophyta Gymnospermae Lycopodiophyta Malanzania Prasinophyceae Pteridophyta Samaropsis Verrucosisporites
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_07187092_v36_n1_p95_diPasquo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_07187092_v36_n1_p95_diPasquo
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spelling	todo:paper_07187092_v36_n1_p95_diPasquo2023-10-03T15:36:35Z First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species di Pasquo, M. Argentina Chronology Grumosisporites delpapae sp. nov. Malanzania starckii sp. nov. Megafloras Palaeoenvironment Palynofloras Pennsylvanian Salta Tarija Formation chronology flora fossil assemblage fossil record new record new species paleoenvironment palynology Argentina Pennsylvania Salta [Argentina] United States Acritarcha algae Chitinozoa Cordaites Dictyotriletes bireticulatus Equisetophyta Gymnospermae Lycopodiophyta Malanzania Prasinophyceae Pteridophyta Samaropsis Verrucosisporites Fossil plant remains found in the Tarija Formation cropping out at the Aguas Blancas creek, Aguaragüe range, Salta Province, Argentina, are analysed and illustrated for the first time. Two new species, Malanzania starckii (Lycophyte) and Grumosisporites delpapae (trilete spore) are described. Molds and impressions of platispermic seeds (Samaropsis nunezii García emend. A. Archangelsky, Cordaicarpus cesariae Gutiérrez, Ganuza, Morel and Arrondo emend. A. Archangelsky), impressions of articulated stems (Paracalamites australis Rigby emend. Zampirolli and Bernardes de Oliveira) and compressions/impressions of fragmented leaves (Cordaites riojanus Archangelsky and Leguizamón, Ginkgophyllum sp. cf. G. diazii Archangelsky and Arrondo) were recorded. This assemblage is attributed to the Pennsylvanian s.l. based on stratigraphic ranges of platispermic seeds. The palynological assemblage is made up of 101 species of which 53 are authocthonous and 48 are reworked. The former group is composed of 34 trilete spore species, 11 monosaccate pollen grains, one bisaccate pollen grain and seven algal species. The reworked group comprises 27 trilete spores and cryptospores, 20 species of acritarchs, prasinophytes and other algae and one chitinozoan. The whole assemblage is attributed to the late Bashkirian- Moscovian based on the recognition of exclusive species of the D. bireticulatus-C. chacoparanensis (BC) Zone (e.g., Dictyotriletes bireticulatus (Ibrahim) Potonié and Kremp emend. Smith and Butterworth, Crucisaccites latisulcatus Lele and Maithy, Verrucosisporites morulatus (Knox) Potonié and Kremp emend. Smith and Butterworth). The vegetation, mainly composed of Lycophytes, Sphenophytes, Pteridophytes and Gymnosperms, would have developed in different continental palaeoenvironments like lakes and rivers fed by mountain glaciers. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07187092_v36_n1_p95_diPasquo
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 Chronology Grumosisporites delpapae sp. nov. Malanzania starckii sp. nov. Megafloras Palaeoenvironment Palynofloras Pennsylvanian Salta Tarija Formation chronology flora fossil assemblage fossil record new record new species paleoenvironment palynology Argentina Pennsylvania Salta [Argentina] United States Acritarcha algae Chitinozoa Cordaites Dictyotriletes bireticulatus Equisetophyta Gymnospermae Lycopodiophyta Malanzania Prasinophyceae Pteridophyta Samaropsis Verrucosisporites
spellingShingle	Argentina Chronology Grumosisporites delpapae sp. nov. Malanzania starckii sp. nov. Megafloras Palaeoenvironment Palynofloras Pennsylvanian Salta Tarija Formation chronology flora fossil assemblage fossil record new record new species paleoenvironment palynology Argentina Pennsylvania Salta [Argentina] United States Acritarcha algae Chitinozoa Cordaites Dictyotriletes bireticulatus Equisetophyta Gymnospermae Lycopodiophyta Malanzania Prasinophyceae Pteridophyta Samaropsis Verrucosisporites di Pasquo, M. First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species
topic_facet	Argentina Chronology Grumosisporites delpapae sp. nov. Malanzania starckii sp. nov. Megafloras Palaeoenvironment Palynofloras Pennsylvanian Salta Tarija Formation chronology flora fossil assemblage fossil record new record new species paleoenvironment palynology Argentina Pennsylvania Salta [Argentina] United States Acritarcha algae Chitinozoa Cordaites Dictyotriletes bireticulatus Equisetophyta Gymnospermae Lycopodiophyta Malanzania Prasinophyceae Pteridophyta Samaropsis Verrucosisporites
description	Fossil plant remains found in the Tarija Formation cropping out at the Aguas Blancas creek, Aguaragüe range, Salta Province, Argentina, are analysed and illustrated for the first time. Two new species, Malanzania starckii (Lycophyte) and Grumosisporites delpapae (trilete spore) are described. Molds and impressions of platispermic seeds (Samaropsis nunezii García emend. A. Archangelsky, Cordaicarpus cesariae Gutiérrez, Ganuza, Morel and Arrondo emend. A. Archangelsky), impressions of articulated stems (Paracalamites australis Rigby emend. Zampirolli and Bernardes de Oliveira) and compressions/impressions of fragmented leaves (Cordaites riojanus Archangelsky and Leguizamón, Ginkgophyllum sp. cf. G. diazii Archangelsky and Arrondo) were recorded. This assemblage is attributed to the Pennsylvanian s.l. based on stratigraphic ranges of platispermic seeds. The palynological assemblage is made up of 101 species of which 53 are authocthonous and 48 are reworked. The former group is composed of 34 trilete spore species, 11 monosaccate pollen grains, one bisaccate pollen grain and seven algal species. The reworked group comprises 27 trilete spores and cryptospores, 20 species of acritarchs, prasinophytes and other algae and one chitinozoan. The whole assemblage is attributed to the late Bashkirian- Moscovian based on the recognition of exclusive species of the D. bireticulatus-C. chacoparanensis (BC) Zone (e.g., Dictyotriletes bireticulatus (Ibrahim) Potonié and Kremp emend. Smith and Butterworth, Crucisaccites latisulcatus Lele and Maithy, Verrucosisporites morulatus (Knox) Potonié and Kremp emend. Smith and Butterworth). The vegetation, mainly composed of Lycophytes, Sphenophytes, Pteridophytes and Gymnosperms, would have developed in different continental palaeoenvironments like lakes and rivers fed by mountain glaciers.
format	JOUR
author	di Pasquo, M.
author_facet	di Pasquo, M.
author_sort	di Pasquo, M.
title	First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species
title_short	First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species
title_full	First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species
title_fullStr	First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species
title_full_unstemmed	First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species
title_sort	first record of megafloras and palynology in the tarija formation (pennsylvanian), aguas blancas creek, salta province, argentina. description of two new species
url	http://hdl.handle.net/20.500.12110/paper_07187092_v36_n1_p95_diPasquo
work_keys_str_mv	AT dipasquom firstrecordofmegaflorasandpalynologyinthetarijaformationpennsylvanianaguasblancascreeksaltaprovinceargentinadescriptionoftwonewspecies
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First record of megafloras and palynology in the Tarija Formation (Pennsylvanian), Aguas Blancas creek, Salta Province, Argentina. Description of two new species

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