K. 1975a. Microspores from Fredericksburg Group (Albian) of the Southern United States. Paleobiologie Continentale, VI(2):1-119.Srivastava, S. K. 1975 . Miospores from the Fredericksburg Group (Albian) of the southern United States. Paléobiologie continentale , 6(2): 1–119....