Descriptions and botanical affinities of Tubulifloridites Cookson 1947 ex Potonié 1960 pollen grains from the san Gregorio formation, Baja California Sur, Mexico
Por:
Galván-Escobedo I.G., Ramírez-Arriaga E., Reyes-Salas M., Martínez-Hernández E., Angeles-García S., García-Moya E.
Publicada:
1 ene 2015
Resumen:
From the San Gregorio Formation (Upper Oligocene-Lower Miocene), Baja California Sur, Mexico, 105.4 meter-deep borehole “B4” was analyzed. Among the continental palynomorphs, four Tubulifloridites taxa, whose botanic affinity is Asteraceae family (Astereae, Eupatorieae and Heliantheae tribes), were recovered and described. The four Tubulifloridites types were classified into three groups according to morphological measures, using k-means cluster analysis. Scanning electron microscope and light photomicrographs were taken. Descriptions complement the contributions made by other authors to this genus, pertaining to the Baja California peninsula during the Paleogene and Neogene and contribute to the geological history of the family. © 2015, Interamerican Society for Electron Microscopy (CIASEM). All rights reserved.
Filiaciones:
Galván-Escobedo I.G.:
Colegio de Postgraduados, Montecillo Campus, Mexico-Texcoco Km. 36.5, Montecillo, Texcoco, Estado de Mexico 56230, Mexico
Ramírez-Arriaga E.:
Palynology Laboratory, Geology Institute, Universidad Nacional Autónoma de México (UNAM), Mexico
Reyes-Salas M.:
Scanning electron microscopy department, Geology Institute, Universidad Nacional Autónoma de México (UNAM) Ciudad Universitaria, Av. Universidad 3000, Coyoacán, México, D.F 04510, Mexico
Martínez-Hernández E.:
Palynology Laboratory, Geology Institute, Universidad Nacional Autónoma de México (UNAM), Mexico
Angeles-García S.:
Scanning electron microscopy department, Geology Institute, Universidad Nacional Autónoma de México (UNAM) Ciudad Universitaria, Av. Universidad 3000, Coyoacán, México, D.F 04510, Mexico
García-Moya E.:
Colegio de Postgraduados, Montecillo Campus, Mexico-Texcoco Km. 36.5, Montecillo, Texcoco, Estado de Mexico 56230, Mexico
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