Plate P15. Scale bar = 100 µm. 1. Cibicidoides sp. 2 (Sample 199-1221C-11X-2, 88–90 cm). 2. Cibicidoides grimsdalei (Nuttall) (Sample 199-1221C-12X-1, 8–10 cm). 3, 4. Oridorsalis umbonatus (Reuss); (3) Sample 199-1215A-8H-4, 11–12 cm, (4) Sample 199-1221C-11X-3, 123–125 cm. 5. Oridorsalis plummerae (Cushman) (Sample 199-1220B-20X-2, 2–4 cm).