Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications
The palynological assemblages of the Talacasto and Punta Negra formations, from the Argentinean Precordillera, were analysed. Marine phytoplankton is dominant in both stratigraphic units. Cymatiosphaera florida, Evittia sommeri, Palacanthus ledanoisii, Riculasphaera fissa, Schizocystia pilosa, Tysan...
| Authors: | ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2017 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/130540 |
| Online Access: | http://hdl.handle.net/11336/130540 |
| Access Level: | Open access |
| Keyword: | ARGENTINEAN PRECORDILLERA BIOSTRATIGRAPHY EARLY DEVONIAN MIOSPORES ORGANIC-WALLED PHYTOPLANKTON PALAEOBIOGEOGRAPHY https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| _version_ | 1878403256256823296 |
|---|---|
| author | García Muro, Victoria J. |
| author2 | Rubinstein, Claudia Viviana Rustán, Juan José |
| author2_role | author author |
| author_browse | García Muro, Victoria J. Rubinstein, Claudia Viviana Rustán, Juan José |
| author_facet | García Muro, Victoria J. Rubinstein, Claudia Viviana Rustán, Juan José |
| author_role | author |
| collection | CONICET Digital (CONICET) |
| description | The palynological assemblages of the Talacasto and Punta Negra formations, from the Argentinean Precordillera, were analysed. Marine phytoplankton is dominant in both stratigraphic units. Cymatiosphaera florida, Evittia sommeri, Palacanthus ledanoisii, Riculasphaera fissa, Schizocystia pilosa, Tysanoprobolus polykion and Winwaloeusia distracta are among the most age-significant phytoplankton species of the Talacasto Formation, while Amicosporites sp. cf. A. streelii, Dictyotriletes emsiensis Morphon, Dictyotriletes favosus and Knoxisporites riondae prove the most biostratigraphically significant miospore species. A Lochkovian to probably late Pragian age is interpreted based on the marine and terrestrial palynomorphs. The lower part of the Punta Negra Formation contains phytoplankton species such as Cordobesia oriental, Cordobesia uruguayensis, Duvernaysphaera stellata, Navifusa bacilla, Polyedryxium fragosulum and Pterospermella sp. cf. P. pernambucensis as well as the miospores Acinosporites sp. cf. A. lindlarensis and Apiculatasporites microconus, which suggests an early Emsian age. Taxa such as Cordobesia, Schizocystia and Winwaloeusia support affinities of the Argentinean assemblages with Gondwana. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | AR_5bbef2ece6e65ca5ce2d7927cc2d0b5a |
| identifier_str_mv | García Muro, Victoria J.; Rubinstein, Claudia Viviana; Rustán, Juan José; Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications; American Association of Stratigraphic Palynologists Foundation; Palynology; 41; 12-2017; 138-157 0191-6122 1558-9188 CONICET Digital CONICET |
| institution | Consejo Nacional de Investigaciones Científicas y Técnicas |
| instname_str | Consejo Nacional de Investigaciones Científicas y Técnicas |
| language | eng |
| network_acronym_str | AR |
| network_name_str | Argentina |
| oai_identifier_str | oai:ri.conicet.gov.ar:11336/130540 |
| publishDate | 2017 |
| publishDateSort | 2017 |
| publisher | American Association of Stratigraphic Palynologists Foundation |
| publisherStr | American Association of Stratigraphic Palynologists Foundation |
| reponame_str | CONICET Digital (CONICET) |
| spelling | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications García Muro, Victoria J. Rubinstein, Claudia Viviana Rustán, Juan José ARGENTINEAN PRECORDILLERA BIOSTRATIGRAPHY EARLY DEVONIAN MIOSPORES ORGANIC-WALLED PHYTOPLANKTON PALAEOBIOGEOGRAPHY https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 The palynological assemblages of the Talacasto and Punta Negra formations, from the Argentinean Precordillera, were analysed. Marine phytoplankton is dominant in both stratigraphic units. Cymatiosphaera florida, Evittia sommeri, Palacanthus ledanoisii, Riculasphaera fissa, Schizocystia pilosa, Tysanoprobolus polykion and Winwaloeusia distracta are among the most age-significant phytoplankton species of the Talacasto Formation, while Amicosporites sp. cf. A. streelii, Dictyotriletes emsiensis Morphon, Dictyotriletes favosus and Knoxisporites riondae prove the most biostratigraphically significant miospore species. A Lochkovian to probably late Pragian age is interpreted based on the marine and terrestrial palynomorphs. The lower part of the Punta Negra Formation contains phytoplankton species such as Cordobesia oriental, Cordobesia uruguayensis, Duvernaysphaera stellata, Navifusa bacilla, Polyedryxium fragosulum and Pterospermella sp. cf. P. pernambucensis as well as the miospores Acinosporites sp. cf. A. lindlarensis and Apiculatasporites microconus, which suggests an early Emsian age. Taxa such as Cordobesia, Schizocystia and Winwaloeusia support affinities of the Argentinean assemblages with Gondwana. Fil: García Muro, Victoria J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Rubinstein, Claudia Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Rustán, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina American Association of Stratigraphic Palynologists Foundation http://hdl.handle.net/11336/130540 García Muro, Victoria J.; Rubinstein, Claudia Viviana; Rustán, Juan José; Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications; American Association of Stratigraphic Palynologists Foundation; Palynology; 41; 12-2017; 138-157 0191-6122 1558-9188 CONICET Digital CONICET |
| spellingShingle | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications García Muro, Victoria J. ARGENTINEAN PRECORDILLERA BIOSTRATIGRAPHY EARLY DEVONIAN MIOSPORES ORGANIC-WALLED PHYTOPLANKTON PALAEOBIOGEOGRAPHY https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| status_str | publishedVersion |
| title | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications |
| title_full | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications |
| title_fullStr | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications |
| title_full_unstemmed | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications |
| title_short | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications |
| title_sort | Lower Devonian organic-walled phytoplankton and miospores from the Precordillera Basin of San Juan, Argentina: Biostratigraphic and paleobiogeographic implications |
| topic | ARGENTINEAN PRECORDILLERA BIOSTRATIGRAPHY EARLY DEVONIAN MIOSPORES ORGANIC-WALLED PHYTOPLANKTON PALAEOBIOGEOGRAPHY https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| topic_facet | ARGENTINEAN PRECORDILLERA BIOSTRATIGRAPHY EARLY DEVONIAN MIOSPORES ORGANIC-WALLED PHYTOPLANKTON PALAEOBIOGEOGRAPHY https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| url | http://hdl.handle.net/11336/130540 |