Table 3. Planktonic foraminiferal datums at Hole 1085A.
Event
Age
(Ma)
Zone
Core, section, interval (cm)
Depth (mbsf)
Top
Bottom
Top
Bottom
Mean



175-1085A- 175-1085A-


FO Globorotalia truncatulinoides 1.77 Pt1a bottom 7H-CC 8H-CC 61.03 68.37 64.70
LO Dentoglobigerina altispira 3.09 Pl4 top 14H-CC 15H-CC 127.45 137.07 132.26
LO Sphaeroidinellopsis spp. 3.12 Pl3 top 16H-CC 17H-CC 143.61 156.43 150.02
LO Globorotalia margaritae 3.58 Pl2 top 22H-CC 23H-CC 203.59 213.22 208.41
LO Globigerina nepenthes 4.18 Pl1b top 26H-CC 27H-CC 241.53 250.87 246.20
LO Globorotalia cibaoensis 4.60 Pl1a top 34X-CC 35X-CC 314.64 324.57 319.61
FO Globorotalia sphericomiozea 5.60
35X-CC 36X-CC 324.57 333.90 329.24
FO Globorotalia conomiozea 6.90 MT10 bottom 40X-CC 41X-CC 372.61 382.52 377.57
LO Neogloboquadrina mayeri 11.40 MT8 top 59X-CC 60X-CC 556.07 565.60 560.84
FO Globorotalia nepenthes 11.80 MT8 bottom 50X-CC 51X-CC 467.20 ~478.00 473.00
LO Globorotalia peripheroronda 14.00 MT6 top 61X-CC 62X-CC 565.60 584.94 575.27
FO Globorotalia peripheroacuta 14.80 M7 bottom 62X-CC 63X-CC 584.97 594.60 589.79

Note: FO = first occurrence and LO = last occurrence.