Plate 1. Magnification for all specimens is 2500x. XP = cross-polarized ligh, Ph = phase contrast. 1-3. Crenalithus doronocoides (Black and Burns) Roth, Sample 161-975B-14H-5, 82-84 cm, XP. 4. Lower specimen, Crenalithus doronocoides (Black and Burns) Rot

Plate 1. Magnification for all specimens is 2500x. XP = cross-polarized light, Ph = phase contrast. 21-22. Calcidiscus leptoporus (Murray and Blackman) Loeblich and Tappan, (>11 µm, elliptical), Sample 161-975B-13H-3, 90-91 cm, XP (21) and Ph (22).