Initial Reports, Volume 199				
Ms 199-112				
Chapter 12, Table T12. Nannofossil, foraminifer, and radiolarian events, Site 1219.				

Notes: * = on Cande and Kent (1995) timescale, 900 k.y. subtracted from age estimates for Triquetrorhabdulus carinatus acme and Cyclicargolithus abisectus acme. ** = transition. T = top, B = bottom, P = presence, X = abundance cross-over, T-T = between top Tribrachiatus contortus and top Fasciculithus spp.				

Marker species/Zonal boundaries		Age (Ma)	Depth (mcd) midpoint	Depth (mcd) plus/minus
Nannofossil events:				
T Cyclicargolithus floridanus		13.2	13.20	0.23
T Sphenolithus heteromorphus		13.6	20.67	0.79
T Discoaster deflandrei acme		16.1	22.69	0.94
T Triquetrorhabdulus carinatus*		19.6	20.48	0.24
T Triquetrorhabdulus carinatus acme*		22.0	4.04	1.08
B Sphenolithus disbelemnos		22.7	26.72	0.32
T Sphenolithus delphix		23.0	27.02	0.30
B Sphenolithus delphix		23.2	27.22	0.25
T Sphenolithus ciperoensis		24.1	26.17	0.35
T Cyclicargolithus abisectus acme*		24.6	26.67	0.80
T Sphenolithus distentus		26.5	29.55	0.75
B Sphenolithus ciperoensis		28.1	35.47	0.75
T Sphenolithus pseudoradians		29.1	44.23	0.75
B Sphenolithus distentus		30.4	49.99	0.75
T Reticulofenestra umbilicus greater than or equal to to 14 micrometer		31.7	54.55	0.10
T Ericsonia formosa		32.9	57.23	0.75
T Discoaster saipanensis		34.0	33.85	13.83
T Discoaster barbadiensis		34.2	33.91	13.83
T Chiasmolithus grandis		37.1	34.84	15.12
B Dictyococcites bisectus		38.5	36.98	6.14
T Dictyococcites hesslandii		40.3	36.99	6.14
B Reticulofenestra umbilicus greater than or equal to 14 micrometer		42.5	72.83	0.38
P Nannotetrina spp.		45.1	39.11	5.76
P Nannotetrina alata		45.2	40.19	0.50
X Tribrachiatus contortus/Tribrachiatus orthostylus		53.4	87.73	0.24
T-T Tribrachiatus contortus / Fasciculithus tympaniformis		53.8	43.64	7.09

Marker species/Zonal boundaries		Age (Ma)	Depth (mcd) midpoint	Depth (mcd) plus/minus
Foraminifer events:				
T Catapsydrax dissimilis		17.3	33.06	1.32
T Paragloborotalia kugleri		21.0	38.19	0.90
B Paragloborotalia kugleri		22.9	56.28	0.13
T Paraglorborotalia opima opima		27.1	78.18	2.79
B G. mayeri			115.64	2.16
T Morozovella acuta		54.3	279.57	0.35

Marker species/Zonal boundaries		Age (Ma)	Depth (mcd) midpoint	Depth (mcd) plus/minus
Radiolarian events				
T C. costata		15.0	5.44	0.49
Dorcadospyris dentata -> Dorcadospyris alata		15.7	19.70	0.75
RN5/4		15.7	19.70	0.75
B C. costata		17.0	25.62	0.31
RN4/3		17.0	25.62	0.31
B Stichocorys wolffii		17.9	33.09	0.75
RN3/2		17.9	33.09	0.75
T Theocyrtis annosa		20.5	42.49	0.75
RN2/1		20.5	42.49	0.75
B Eucyrtidium. diaphanes		23.9	47.60	0.88
T Artophormis gracilis		23.9	47.60	0.88
B Cyrtocapsella tetrapera		23.6	49.22	0.75
RN1/RP22		23.6	52.36	0.75
RP22/21		24.6	65.89	0.58
RP21/20		28.8	124.83	0.75
RP20/19		32.8	178.16	0.84
RP19/18		34.9	184.00	0.78
RP18/17		36.4	188.53	0.75
RP17/16		37.7	200.53	0.75
RP16/15		38.8	212.11	0.75
RP15/14		39.5	230.54	0.75
RP14/13		42.8	244.03	0.75
RP13/12		44.5	250.03	0.75