Liliacidites sp. 3

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 : 8

Liliacidites sp. 3

Figure 3.8

Material. Sample Pb-8871, Palynology Laboratory, IGLUNAM.

Description. Monad pollen, heteropolar, bilateral symmetry, amb oval. Monosulcate, aperture reaching the ends of the equator. Exine semitectate, collumelate, 1 µm thick, reticulate, heterobrochate, reticulum consisting of large brochi of 1 µm with small brochi <1 µm, both randomly distributed, muri <0.5 µm.

Dimensions. Length 29–46 µm, width 17–28 µm, three specimens measured.

Comparisons. Liliacidites sp. 3 has thinner muri than those in Liliacidites sp. 1 and Liliacidites sp. 2 of the same association. This taxon resembles the specimen Liliacidites quadrangularis illustrated by Roche and Schuler (1976) from Belgium (plate VII, figures 12–14), but L. quadrangularis has a thicker exine. Liliacidites sp. 3 from Cuayuca Formation closely resembles Liliacidites sp. A ( Christopher et al., 1980, plate 3, figures 3–4) from Warm Springs, Georgia, U.S.A. ( Christopher et al., 1980).