Momipites coryloides Wodehouse, 1933

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 : 17-18

Momipites coryloides Wodehouse, 1933

Figure 4.12

Material. Samples Pb-9138’(1), Pb-9334(4) and Pb-9340(2), Palynology Laboratory, IGLUNAM.

Description. Monad, isopolar, radiosymmetric, amb triangular. Triporate, equidistant zonate pores. Exine tectate, 1 µm thick with uniformly spaced spinules.

Dimensions. Equatorial diameter 14 (17.8) 20 µm, five specimens measured.

Other occurrences. Mexico – late Eocene to early Oligocene Pie de Vaca Formation ( Martínez-Hernández and Ramírez-Arriaga, 1999); Oligocene

San Gregorio Formation (Martínez-Hernández and Ramírez-Arriaga, 2006); Oligo-Miocene of Chiapas ( Langenheim et al., 1967). U.S.A. – late Cretaceous to Paleocene, Colorado ( Newman, 1965); late Paleocene, South Carolina ( Van Pelt et al., 2000); late Eocene, Yazoo Clay, Mississippi ( Tschudy and van Loenen, 1970); late Eocene, Mississippi and Alabama ( Frederiksen, 1980a); Paleocene – late Eocene, South Carolina ( Frederiksen, 1980b); Eocene, Mississippi embayment ( Tschudy, 1973); Miocene, Massachusetts ( Frederiksen, 1984); early Eocene, Tennessee ( Elsik and Dilcher, 1974). Central America – Oligocene San Sebastión Formation, Puerto Rico ( Graham and Jarzen, 1969); Eocene Gatuncillo Formation, Panamá ( Graham, 1985); early Miocene Cucaracha Formation and La Boca Formation ( Graham, 1988); Mio-Pliocene of Haiti ( Graham, 1990b). Europe – Eocene, England ( Wilkinson and Boulter, 1980).

Figures

FIGURE 4. Angiosperm pollen grains from the Cuayuca Formation. 1, Corsinipollenites sp. 1, Pb–9334(1): EF G33/ 3; 2, Corsinipollenites sp. 3, Pb–9334(4): EF R36/1; 3, Corsinipollenites sp. 2, Pb–9334(4): EF T35/3; 4-5, Margocolporites sp., Pb–9340(1): EF N35/3; 6, Margocolporites aff. vanwijhei, Pb-9334(1'): EF T39/2; 7, Monocolpopollenites aff. texensis Nichols, Ames and Traverse 1973 Pb–8872(1A): EF W29/1; 8-9 Rhoipites sp., Pb–8890(1):101.9/17.2; 10, Lymingtonia sp., Pb–9334(4): EF S32/4; 11, Momipites tenuipolus Pb-9334(4): 101.6/12.5; 12, Momipites coryloides, Pb-9138’(1): 92.2/2.8; 13, Fabaceae pollen type 3, Pb–9334(4): EF M34/4; 14, Clavainaperturites sp., Pb– 9147(2): EF R34/2; 15, Linum pollen type, Pb–9334 (1’): EF S33/2; 16, Magnaperiporites sp., Pb–9334(4): EF R39/2; 9. Scale bar represnts 10 µm.