Chenopodipollis 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 : 14

Chenopodipollis sp.

Figure 3.9

Material. Samples Pb-9147, Pb-9136, Pb-9343, Pb-8869, Pb-8872, Pb-9138, Pb-8898, and Pb- 9334, Palynology Laboratory, IGLUNAM.

Description. Monad pollen, apolar, radiosymmetric, spheroidal. Periporate, 22 pores 2.5–3 µm wide, annulate, annulus 1.5 µm thick. Exine tectate, collumelate, 1 µm thick, with microreticulate pattern.

Dimensions. Diameter: 16–25 µm, 10 specimens measured.

Comparison. Our specimens have dimensions and annulus similar to Chenopodipollis multiplex ( Bebout, 1980) . However, the exine of the Chenopodipollis sp. from the Cuayuca Formation shows a microreticulate pattern, and this trait is not observed in C. multiplex .

Other occurrences. This genus has been reported across the globe since the Paleocene. In Mexico there are records of this genus from the late Eocene to early Oligocene Pie de Vaca Formation, Puebla ( Martínez-Hernández and Ramírez-Arriaga, 1999); Oligocene San Gregorio Formation, Baja California Sur (Martínez-Hernández and Ramírez-Arriaga, 2006); Oligocene-Miocene of Chiapas ( Biaggi, 1978); and Neogene ( Palacios and Rzedowski, 1993; Graham, 1975).