Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina

A diverse and relatively well‐preserved palynological assemblage has been recovered from the Los Monos Formation in the Quebrada Galarza well, northwestern Argentina. Ninety‐eight species of palynomorphs are represented. Thirty‐four are miospores (with two dubiously placed), fifty‐one are acritarchs...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Ottone, E.G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01916122_v20_n1_p105_Ottone
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01916122_v20_n1_p105_Ottone
record_format dspace
spelling todo:paper_01916122_v20_n1_p105_Ottone2023-10-03T15:08:59Z Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina Ottone, E.G. A diverse and relatively well‐preserved palynological assemblage has been recovered from the Los Monos Formation in the Quebrada Galarza well, northwestern Argentina. Ninety‐eight species of palynomorphs are represented. Thirty‐four are miospores (with two dubiously placed), fifty‐one are acritarchs, eight are chitinozoans and five are scolecodonts. Two new genera of acritarchs, Crucidia and Hemiruptia, are proposed herein. Seven new species are described: one spore, Acinosporites ledundae; four acritarchs, Ammonidium garrasinoi, Cymatiosphaera apiaria, Hemiruptia legaultii and Polygonium barredae; and two chitinozoans, Angochitina galarzae and Belonechitina holfeltzii. Previously described species of palynomorphs suggest a late Givetian‐early Frasnian age for the Los Monos Formation in the Quebrada Galarza well. Stratigraphic and phytogeographic implications of the palynological assemblage are discussed. The presence of several terrestrial species previously recognized in northern Gondwana and in the Northern Hemisphere reinforces currently accepted paleogeographical reconstructions of the upper Middle through lower Upper Devonian. Acritarch data corroborate the existence of important phytoplanktonic links between Gondwana and the Northern Hemisphere via a relatively temperate marine realm. © 1996 by AASP Foundation. Fil:Ottone, E.G. 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_01916122_v20_n1_p105_Ottone
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A diverse and relatively well‐preserved palynological assemblage has been recovered from the Los Monos Formation in the Quebrada Galarza well, northwestern Argentina. Ninety‐eight species of palynomorphs are represented. Thirty‐four are miospores (with two dubiously placed), fifty‐one are acritarchs, eight are chitinozoans and five are scolecodonts. Two new genera of acritarchs, Crucidia and Hemiruptia, are proposed herein. Seven new species are described: one spore, Acinosporites ledundae; four acritarchs, Ammonidium garrasinoi, Cymatiosphaera apiaria, Hemiruptia legaultii and Polygonium barredae; and two chitinozoans, Angochitina galarzae and Belonechitina holfeltzii. Previously described species of palynomorphs suggest a late Givetian‐early Frasnian age for the Los Monos Formation in the Quebrada Galarza well. Stratigraphic and phytogeographic implications of the palynological assemblage are discussed. The presence of several terrestrial species previously recognized in northern Gondwana and in the Northern Hemisphere reinforces currently accepted paleogeographical reconstructions of the upper Middle through lower Upper Devonian. Acritarch data corroborate the existence of important phytoplanktonic links between Gondwana and the Northern Hemisphere via a relatively temperate marine realm. © 1996 by AASP Foundation.
format JOUR
author Ottone, E.G.
spellingShingle Ottone, E.G.
Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina
author_facet Ottone, E.G.
author_sort Ottone, E.G.
title Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina
title_short Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina
title_full Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina
title_fullStr Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina
title_full_unstemmed Devonian palynomorphs from the los monos formation, Tarija Basin, Argentina
title_sort devonian palynomorphs from the los monos formation, tarija basin, argentina
url http://hdl.handle.net/20.500.12110/paper_01916122_v20_n1_p105_Ottone
work_keys_str_mv AT ottoneeg devonianpalynomorphsfromthelosmonosformationtarijabasinargentina
_version_ 1782029890625732608

Ejemplares similares