Table T5. Diatom range distribution chart for Site 1042.

Diatom zone	Core, section, interval (cm)	Depth (mbsf)	Abundance	Preservation	Actinocyclus moronesis	Actinoptychus senarius	Azpeitia nodulifer	Cestodiscus pulchellus	Coscinodiscus lewisianus	Coscinodiscus marginatus	Crucidenticula nicobarica	Denticulopsis hustedtii	Nitzschia marina	Nitzschia miocenica	Nitzschia reinholdii	Rossiella paleacea	Thalassionema nitzschioides	Thalassiosira convexa var. aspinosa	Thalassiosira miocenica	Thalassiosira oestrupii	Thalassiosira praeconvexa	Thalassiothrix longissima	Benthics + Chaetoceros
	170-1042A-
Undetermined	1R-CC	49.93	R	P													R					R
	2R-2, 1-2	96.93	B
	2R-CC	97.73	B
	3R-1, 124-125	154.94	B
	3R-CC	156.26	R	P		R											R					R
Thalassiosira convexa to Nitzchia miocenica?	4R-2, 48-49	203.44	C	M										R			C		r				F
	4R-CC	203.92	R	P		R											R					R
	5R-CC	212.88	C	P				r		R				R	R	r	F	F		r		F
	6R-CC	223.18	F	M		R								F	R		R	R		r	F	R
	7R-2, 48-50	231.18	F	P									R	R									F
Undetermined	7R-CC	231.65	R	P	r			r	r								R					R
	170-1042B-
	1R-1, 0-4	316	R	P
	3R-CC	333.26	R	P																		R
Coscinodiscus lewisianus?	4R-1, 73-75	334.01	F	M				R	R		R	F
Undetermined	5R-2, 27-28	352.3	B
	5R-3, 54-55	354.33	R	F						R													R
	5R-CC	354.72	R	P			R			R							R					R
	6R-CC	363.14	B
	8R-CC	383.47	R	P						R

Notes: Abundance abbreviations: A = abundant, C = common, R = rare, B = barren, r = reworked. Preservation abbreviations: G = good, M = moderate, P = poor. Sz = subzone. The column labeled "Benthics + Chaetoceros" records the presence of one or more of the following diatom genera: Chaetoceros, Cocconeis, Dephineis, Diploneis, Rhaponeis, and Paralia. Shaded intervals reflect uncertainty in placement of zonal boundaries.