Favitricolporites sp.

Ramírez-Arriaga, Elia, Prámparo, Mercedes B. & Martínez-Hernández, Enrique, 2014, Angiosperm pollen grains from the Cuayuca Formation (Late Eocene to Early Oligocene), Puebla, Mexico, Palaeontologia Electronica 102 (8), pp. 1-38 : 9-11

Favitricolporites sp.

Figure 3.10

Material. Sample Pb-9138, Palynology Laboratory, IGLUNAM.

Description. Monad pollen, isopolar, radiosymmetric, amb circular. Tricolporate syncolpate, colpi with margins 1 µm wide, extending nearly to the poles. Exine semitectate, collumelate, 1 µm thick, reticulate, homobrochate.

Dimensions. Equatorial diameter 16 µm, one specimen measured.

Comparisons. Favitricolporites sp. 1 described by Frederiksen et al. (1983) is similar in ornamentation to the Favitricolporites from the Cuayuca Formation, although Favitricolporites sp. 1 is larger ( Frederiksen et al., 1983: 36–50 µm). Unfortunately, no specimens were observed in meridional (equatorial) view, and for this reason the endoaperture could not be described.

Other occurrences. This taxon has been reported from the U.S.A. middle Eocene Mission Valley Formation ( Frederiksen et al., 1983). There are no previous records of the genus in Mexico.