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Table T2. Datum events of radiolarians, diatoms, and silicoflagellates, Holes U1339A, U1339B, U1339C, and U1339D. (See table notes.)

Datum event
Taxon
Age
(ka)
Depth (mbsf)
Hole U1339A Hole U1339B Hole U1339C Hole U1339D
LO Lychnocanoma nipponica sakaii Radiolarian 52 ± 5 19.49 18.51 14.60 11.33
LO Amphimelissa setosa Radiolarian 90 ± 10   37.59 34.03 29.54
LO Distephanus octonarius Silicoflagellate 244 ± 47   47.25 71.59 48.16
LO Proboscia curvirostris Diatom 300   75.66 90.18 66.89
LO Spongodiscus sp. Radiolarian 300 ± 20   75.66 80.94 75.73
LO Thalassiosira jouseae Diatom 300   75.66 90.18 57.78
LO Axoprunum acquilonium Radiolarian 340 ± 90   125.30 90.18 115.07
LO Stylatractus universus Radiolarian 460 ± 50   163.38 109.45 133.04
FO Distephanus octangulatus Silicoflagellate 741 ± 3       190.10
LO Dictyocha subarctios Silicoflagellate 736 ± 2       190.10

Notes: For first occurrences (FO), the depth was estimated as the midpoint between the depth at which the species was first observed and the depth of the next sample below. 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.

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