Plate P1. Illustrations of taxa, sample, and slide number. Scale bar = ~20 µm unless stated otherwise. Scanning electron microscope (SEM) photographs have varying scale bars. 1. Adnatosphaeridium multispinosum (Sample 189-1172D-15R-3, 40-42cm) (1). 2. Aio

Plate P1 (continued). 49-52. Deflandrea antarctica group; (49) Sample 189-1172A-39X-6, 85-87 cm (1); (50) Sample 189-1172A-52X-5, 85-87 cm (1); (51, 52) Sample 189-1172D-3R-1, 40-42 cm (1). 53-59. Deflandrea convexa group; (53) Sample 189-1172D-5R-1, 40-42 cm (1); (54, 55). Sample 189-1172D-5R-1, 40-42 cm (2); (56, 57) Sample 189-1172D-5R-1, 40-42 cm (1); (58, 59) Sample 189-1172D-8R-6, 40-42 cm (1). 60. Deflandrea phosphoritica group (Sample 189-1172A-39X-4, 10-12 cm) (1).