Table T2. Age assignments of biostratigraphic zones and linear sedimentation rates.
Zone
Age
(Ma)
Datum used to define base
Depth
(mbsf)
Error ±
(m)
LSR
(cm/k.y.)
Miocene




Nitzschia denticuloides 13.51 FO N. denticuloides 17.65 1.95 1.84
Denticulopsis hustedtii/Nitzschia grossepunctata 14.17 FO D. hustedtii 29.82 0.17 0.95
Actinocyclus ingens/Denticulopsis maccollumii 16.20 FCO A. ingens 49.17 0.16 1.53
Denticulopsis maccollumii 16.75 FO D. maccollumii 57.60 0.25 1.22
Crucidenticula kanayae 17.72 FO C. kanayae 69.41 4.54 1.07
Oligocene




Rocella vigilans a 30.24 FO R. vigilans var. a (<40 µm) 203.83 0.38 0.97
Cavitatus jouseanus 30.62 FO C. jouseanus 207.50 0.30

Notes: Age assignments of biostratigraphic zones are taken from Shipboard Scientific Party (1999). Depth indicated = the midpoint depth between two samples. Error = the distance from midpoint depth to the two samples that mark the top and bottom of that interval. LSR = linear sedimentation rate, FO = first occurrence, FCO = first common occurrence.