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Título: | A morphometric study of early Miocene Mauritiidites from Northern South America |
Autor: | Rull, Valentí CSIC ORCID | Fecha de publicación: | 2001 | Editor: | Scandinavian University Press | Citación: | Grana 40(3): 163-167 (2001) | Resumen: | [EN] Palaeo-biogeographical knowledge of the monosulcate Tertiary form-genus Mauritiidites can be useful to study important palaeoecological and evolutionary questions in the Neotropical lowlands. However, the lack of taxonomic diVerentiation within this fossil pollen genus is a handicap, and a broad morphological and morphometric study, both in space and time, is needed to establish a consistent Mauritiidites taxonomy.This note shows a morphometric characterisationof early MioceneMauritiidites from western Venezuela, as a ® rst step. Morphologically, the specimens studied are consistent with the description of Mauritiidites franciscoi (van der Hammen) van der Hammen & GarcõÂ a de Mutis 1966. Light microscope measurements show little variability in most of the parameters, except for the aperture width. However, this is considered part of the natural variability within a single pollen type, which is commonly found in the pollen of several modern palm genera and species. As a result, a single morphological and morphometric pollen type is proposed for the specimens studied. Future studies should characterise more Mauritiidites specimens from other regions and time slices, to found taxonomically-meaning diVerences. | Descripción: | 5 p. | Versión del editor: | http://dx.doi.org/10.1080/00173130152625914 | URI: | http://hdl.handle.net/10261/28485 | DOI: | 10.1080/00173130152625914 | ISSN: | 0017-3134 |
Aparece en las colecciones: | (IBB) Artículos |
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2001 GRANA Mauritia.pdf | 409,02 kB | Adobe PDF | Visualizar/Abrir |
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