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Table T12. Radiolarian datum events, Holes U1341A, U1341B, and U1341C. (See table note.)

Zone Marker species Age
(Ma)		 Hole U1341A Hole U1341B Hole U1341C
Core, section Depth (mbsf) Core, section Depth (mbsf) Core, section Depth (mbsf)
Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom Top Bottom
Botryostrobus aquilonaris T Lychnocanoma nipponica sakaii 0.05 1H-CC 2H-CC 3.02 12.64   1H-CC 0.00 8.72 1H-CC 2H-CC 5.5 15.4
T Amphimelissa setosa 0.08–0.10 1H-CC 2H-CC 3.02 12.64 1H-CC 2H-CC 8.72 18.58 2H-CC 3H-CC 15.4 24.9
T Spongodiscus sp. 0.28–0.32 4H-CC 5H-CC 31.77 41.32     37.70 47.18 6H-CC 7H-CC 53.6 62.2
T Axoprunum acquilonium 0.25–0.43 6H-CC 7H-CC 50.95 60.51     56.68 66.18 7H-CC 8H-CC 62.2 71.1
Stylatractus universus T Stylatractus universus 0.41–0.51 13H-CC 14H-CC 117.70 127.10 Not found     6H-CC 7H-CC 53.6 62.2
Eucyrtidium matuyamai T Eucyrtidium matuyamai 0.9–1.5 13H-CC 14H-CC 117.70 127.10 11H-CC 12H-CC 104.25 113.59 16H-CC 17H-CC 139.7 147.2
B Eucyrtidium matuyamai 1.7–1.9 15H-CC 16H-CC 136.26 146.07 15H-CC 16H-CC 142.36 151.68 19H-CC 20H-CC 166.6 176.1
Cycladophora sakaii T Thecosphaera akitaensis 2.4–2.7         46H-CC 47H-CC 413.70 414.53        
Dictyophimus bullatus T Dictyophimus bullatus 3.8–4.0         70X-CC 71X-CC 592.25 601.87        

Note: T = top, B = bottom.

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