GALVÁN-ESCOBEDO, I. G.; RAMÍREZ-ARRIAGA, E.; REYES-SALAS, M.; MARTÍNEZ-HERNÁNDEZ, E.; ANGELES-GARCÍA, S.; GARCÍA-MOYA, E. Descriptions And Botanical Affinities Of Tubulifloridites Cookson 1947 ex Potonié 1960 Pollen Grains From The San Gregorio Formation, Baja California Sur, Mexico. Acta Microscopica, v. 24, n. 1, p. 7-15, 29 maio 2015.