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Table T2. Datum events of radiolarians, diatoms, calcareous nannofossils, and silicoflagellates, Holes U1342A, U1342B, U1342C, and U1342D. (See table notes.)

Datum event Taxon Age
(Ma)
Depth (mbsf) Depth CCSF-A (m)
Hole
U1342A
Hole
U1342B
Hole
U1342C
Hole
U1342D
Hole
U1342A
Hole
U1342B
Hole
U1342C
Hole
U1342D
LO Lychnocanoma nipponica sakaii Radiolarian 0.05 0.9 2.7 3.6 3.1 0.9 2.7 3.6 3.0
LO Amphimelissa setosa Radiolarian 0.08–1 3.6 3.6
LO Spongodiscus sp. Radiolarian 0.28–0.32 6.6 10.2 12.1 11.0 6.8 10.1 11.9 11.0
LO Axoprunum acquilonium Radiolarian 0.25–0.43 16.2 19.8 12.1 20.5 16.8 20.0 11.9 21.2
LO Proboscia curvirostris Diatom 0.3 16.2 10.2 21.8 11.0 16.8 10.1 22.0 11.0
LO Pseudoemiliania lacunosa Calcareous nannofossil 0.44 16.2 16.8
LO Dictyocha subarctios Silicoflagellate 0.73–0.75 25.9 30.0 26.8 31.2
LO Eucyrtidium matuyamai Radiolarian 0.9–1.5 29.3 30.3

Notes: For last occurrences (LO), the depth was estimated as the midpoint between the depth at which the species was last observed and the depth of the next sample above. — = not applicable.

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