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). 61-63. Deflandrea sp. A; (61) Sample 189-1172A-39X-4, 74-76 cm (1); note triangular endophragm; (62) Sample 189-1172A-39X-4, 74-76 cm) (2); (63) Sample 189-1172A-39X-4, 74-76 cm) (1). 64, 65. Dinopterygium sp. A (Sample 189-1172D-24R-5, 130-133 cm) (1). 66. Dracodinium waipawaense (Sample 189-1172D-13R-2, 40-42 cm) (1). 67-69. Enneadocysta partridgei; (67) Sample 189-1172A-39X-5, 105-107 cm (1); (68, 69) Short processes (Areosphaeridium ebdonii-style) (Sample 189-1172A-40X-2, 70-72 cm) (1); such variations are considered environmentally controlled. 70. Eocladopyxis peniculata (Sample 189-1172A-48X-4, 108-110 cm (1). 71, 72. Glaphyrocysta spp. (Core 189-1172D-22R).