Figure 2.19.Vulvulina spinosa Cushman, 1927. Side view. 19. Holotype. Late Eocene. From the Alaxan Clay, Rio Buena Vista, just South of crossing of Alazan to Moyutla Road, Vera Cruz, Mexico. Collected by T. W. Vaughan, Smithsonian Collection. CC 901. Scale Bar = 234 microns.