Antarcticella: a Paleogene typical foraminiferal genus from southernmost South America
The Patagonian and Fuegian regions conform a wide latitudinal and chronostratigraphical study area, where the abundant calcareous benthic foraminifera endemic to the Austral high and high-mid latitudes, have a partially or totally tuberculate surface. Among them, is the extinct Antarcticella, a smal...
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| Autores principales: | , , |
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| Formato: | Objeto de conferencia Resumen |
| Lenguaje: | Inglés |
| Publicado: |
2010
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/16639 |
| Aporte de: |
| Sumario: | The Patagonian and Fuegian regions conform a wide latitudinal and chronostratigraphical study area, where the abundant calcareous benthic foraminifera endemic to the Austral high and high-mid latitudes, have a partially or totally tuberculate surface. Among them, is the extinct Antarcticella, a small globular genus initially regarded as planktonic. The oldest species, A. pauciloculata (Jenkins), is widespread in the Danian from Patagonia, Antarctica, and New Zealand; the subsequent A. cecionii (Cañón and Ernst) is constrained to the Fuegian early and early middle Eocene; there is no record of Antarcticella from the mid middle Eocene, partially due to a sedimentary gap. |
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