Plate P9. Light microscope images of freshwater diatoms (figures 1–56) and marine diatom genus Chaetoceros resting spores indicating upwelling and high-nutrient regions (figures 57–96), Hole U1352B. Scale bars = 10 μm. 1–8. Aulacoseira granulata (Ehrenberg) Simonsen: (1, 2) Sample 317-U1352B-5H-4W, 109–110 cm; (3, 4) Sample 31H-2W, 58–59 cm; (5, 6) Sample 5H-5W, 101–102 cm; (7, 8) Sample 3H-6W, 74–75 cm. 9–18. Cyclotella pantanelliana Castracane: (9, 10) Sample 317-U1352B-2H-2W, 138–139 cm; (11, 12) Sample 25H-1W, 25–26 cm; (13–16) Sample 19H-3W, 36–37 cm; (17, 18) Sample 5H-4W, 109–110 cm. 19–30. Cymbella spp.: (19, 20) Sample 317-U1352B-47X-5W, 24–25 cm; (21, 22) Sample 90X-1W, 31–32 cm; (23, 24) Sample 85X-1W, 44–45 cm; (25, 26) Sample 85X-2W, 25–26 cm; (27, 28) Sample 39X-5W, 99–100 cm; (29, 30) Sample 81X-4W, 25–26 cm. 31–44. Discostella stelligera (Cleve et Grunow) Houk et Klee: (31, 32) Sample 317-U1352B-3H-6W, 74–75 cm; (33, 34) Sample 5H-3W, 9–10 cm; (35, 36) Sample 1H-6W, 10–11 cm; (37–40, 43, 44) Sample 12H-7W, 36–37 cm; (41, 42) Sample 7H-2W, 60–61 cm. 45–48. Encyonema spp.: (45, 46) Sample 317-U1352B-26H-6W, 25–26 cm; (47, 48) Sample 26H-4W, 100–101 cm. 49–52. Epithemia spp.: (49, 50) Sample 317-U1352B-6H-1W, 112–113 cm; (51, 52) Sample 21H-3W, 27–28 cm. 53–56. Eunotia spp.: (53, 54) Sample 317-U1352B-41X-7W, 30–31 cm; (55, 56) Sample 42X-5W, 100–101 cm. 57–62. Xanthiopyxis type A (knobby type) of Suto (2004d): (57, 58) Sample 317-U1352B-12H-5W, 128–129 cm; (59, 60) Sample 26H-2W, 100–101 cm; (61, 62) Sample 43X-5W, 105–106 cm. 63–78. Xanthiopyxis type B (short spiny type) of Suto (2004d): (63, 64) Sample 317-U1352B-12H-5W, 128–129 cm; (65, 66) Sample 22H-3W, 120–121 cm; (67, 68) Sample 26H-2W, 100–101 cm; (69, 70) Sample 40X-3W, 105–106 cm; (71, 72) Sample 44X-1W, 105–106 cm; (73, 74) Sample 38X-2W, 99–100 cm; (75, 76) Sample 40X-2W, 25–26 cm; (77, 78) Sample 39X-1W, 24–25 cm. 79–84. Xanthiopyxis type C (long spiny type) of Suto (2004d): (79, 80) Sample 317-U1352B-26H-5W, 100–101 cm; (81, 82) Sample 38X-2W, 99–100 cm; (83, 84) Sample 41X-7W, 30–31 cm. 85–96. Hyaline type resting spores: (85, 86) hyaline type epivalve, Sample 317-U1352B-23H-4W, 110–111 cm; (87, 88) hyaline type hypovalve, Sample 61X-2W, 23–24 cm; (89, 90) Sample 43X-6W, 24–25 cm; (91, 92) Sample 38X-2W, 99–100 cm; (93, 94) Sample 52X-5W, 123–124 cm; (95, 96) Sample 25H-6W, 50–51 cm.
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