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Plate P10. Light microscope images of marine diatom genus Chaetoceros resting spores indicating upwelling and high-nutrient regions, Hole U1352B. Scale bars = 10 μm. 1, 2. Coronodiscus collarius Suto (Sample 317-U1352B-12H-5W, 128–129 cm). 36. Dicladia capreola Ehrenberg: (3, 4) Sample 317-U1352B-27H-2W, 93–94 cm; (5, 6) Sample 27H-5W, 25–26 cm. 710. Dicladia ? spp. (Sample 317-U1352B-32H-3W, 80–81 cm). 1116. Dispinodiscus pilusus var. montanus Suto: (11, 12) Sample 317-U1352B-22H-6W, 115–116 cm; (13, 14) Sample 27H-5W, 25–26 cm; (15, 16) Sample 56X-4W, 105–106 cm. 17, 18. Dispinodiscus pilusus var. pilusus Suto (Sample 317-U1352B-26H-5W, 100–101 cm). 1924. Dispinodiscus stimulus Suto: (19, 20) Sample 317-U1352B-19H-5W, 135–136 cm; (21, 22) Sample 38X-2W, 99–100 cm; (23, 24) Sample 34H-5W, 34–35 cm. 2534. Gemellodiscus bifurcus Suto: (25, 26) Sample 317-U1352B-52X-5W, 123–124 cm; (27, 28) Sample 34H-5W, 34–35 cm; (29–32) Sample 27H-5W, 25–26 cm; (33, 34) Sample 26H-2W, 100–101 cm. 35, 36. Gemellodiscus cingulus (Sample 317-U1352B-25H-5W, 25–26 cm). 37, 38. Hypovalve of Gemellodiscus (Sample 317-U1352B-39X-5W, 99–100 cm). 3946. Liradiscus castaneus var. castaneus Suto: (39, 40) Sample 317-U1352B-25H-4W, 25–26 cm; (41, 42) Sample 38X-1W, 25–26 cm; (43, 44) Sample 39X-3W, 25–26 cm; (45, 46) Sample 58X-7W, 80–81 cm. 47, 48. Liradiscus japonicus Suto (Sample 317-U1352B-25H-3W, 25–26 cm). 49, 50. Liradiscus pacificus Suto (Sample 317-U1352B-35H-1W, 32–33 cm). 5154. Liradiscus plicatulus Hajós: (51, 52) Sample 317-U1352B-7H-2W, 93–94 cm; (53, 54) Sample 56X-4W, 105–106 cm. 55, 56. Monocladia sp. (Sample 317-U1352B-27H-5W, 25–26 cm). 5762. Quadrocistella rectagonuma Suto: (57, 58) Sample 317-U1352B-22H-3W, 120–121 cm; (59, 60) Sample 23H-1W, 25–26 cm; (61, 62) Sample 12H-5W, 128–129 cm. 6374. Syndendrium diadema Ehrenberg: (63, 64) Sample 317-U1352B-26H-3W, 94–95 cm; (65–68, 71, 72) Sample 43X-5W, 105–106 cm; (69, 70) Sample 43X-6W, 24–25 cm; (73, 74) Sample 40X-1W, 105–106 cm. 7578. Vallodiscus complexus Suto: (75, 76) Sample 317-U1352B-16H-7W, 24–25 cm; (77, 78) Sample 17H-1W, 115–116 cm. 7984. Xanthiopyxis hirsuta Hanna et Grant: (79, 80) Sample 317-U1352B-22H-1W, 117–118 cm; (81, 82) Sample 24H-6W, 110–111 cm; (83, 84) Sample 56X-4W, 105–106 cm. 85, 86. Xanthiopyxis polaris Gran (Sample 317-U1352B-55X-3W, 72–73 cm).

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