Table T8. List of Cretaceous planktonic foraminifer and calcareous nannofossil highest, lowest, and lowest common occurrences, Hole 1183A.

Table T8. List of Cretaceous planktonic foraminifer and calcareous nannofossil highest, lowest, and lowest common occurrences, Hole 1183A.

Event

Species

Stage

Core, section,
interval (cm)

Zone/Subzone

Depth
(mbsf)

Age
(Ma)

HO M. mura upper Maastrichtian 39R-4, 100 CC25B 987.40 68.66

HO G. fornicata upper Maastrichtian 40R-3, 58 Gansseri 995.23 68.01

LO C. gallica upper Maastrichtian 41R-1, 55 CC25B 1001.95 68.66

HO R. pennyi upper Maastrichtian 41R-CC Gansseri 1004.26 68.20

LO G. gansseri upper Maastrichtian 41R-CC Gansseri 1004.26 71.37

LO M. praemura upper Maastrichtian 43R-1, 62 CC25B 1021.42 69.16

HO S. biarcus (closed) upper Maastrichtian 43R-1, 62 CC25B 1021.42 69.20

HO G. bicrescenticus upper Maastrichtian 43R-CC CC25B 1022.08 68.33

LO S. biarcus (elliptical) upper Maastrichtian 43R-CC CC25B 1022.08 69.73

LO R. subpennyi lower Maastrichtian 43R-CC Aegyptiaca 1022.08 ?

LO Cribcrocorona spp. upper Maastrichtian 44R-CC CC25A 1031.28 ?

HO U. trifidum lower Maastrichtian 45R-1, 56 CC24 1040.56 70.07

HO U. gothicum lower Maastrichtian 45R-1, 56 CC24 1040.56 70.07

HO Q. gartneri lower Maastrichtian 45R-1, 56 CC24 1040.56 70.40

LO P. excolata upper Campanian 45R-3, 1 Aegyptiaca 1042.71 72.70

HO R. elegans upper Campanian 46R-2, 22 CC22B 1051.22 74.00

HO A. cymbiformis var. NT upper Campanian 46R-2, 22 CC22B 1051.22 74.60

HO Tranolithus sp. 1 upper Campanian 46R-2, 22 CC22B 1051.22 74.60

LO R. levis upper Campanian 47R-CC CC22B 1060.70 74.72

LO G. ventricosa upper Campanian 47R-CC Ventricosa 1060.70 77.60

LO P. costulata upper Campanian 47R-CC Elevata 1060.70 79.10

LO U. trifidum upper Campanian 48R-1, 49 CC22A 1069.29 75.30

HO A. parcus parcus upper Campanian 48R-2, 49 CC 21 1070.79 75.18

HO B. bevieri upper Campanian 48R-2, 49 CC 21 1070.79 75.20

HO W. fossacincta upper Campanian 48R-2, 49 CC 21 1070.79 76.03

HO E. eximius upper Campanian 49R-CC CC 21 1078.66 76.33

HO C. ovalis upper Campanian 49R-CC CC 21 1078.66 77.15

LO U. gothicum upper Campanian 49R-CC CC 21 1078.66 77.20

LO B. magnus upper Campanian 49R-CC CC 21 1078.66 77.18

HO B. hayii lower Campanian 50R-1, 88 CC19A 1089.08 78.90

HO C. crassus lower Campanian 50R-1, 112 CC18 1089.32 80.70

HO M. furcatus lower Campanian 50R-1, 112 CC18 1089.32 81.24

LO A. parcus constrictus lower Campanian 50R-2, 20 CC18 1089.90 82.42

LO A. parcus parcus lower Campanian 50R-2, 20 CC18 1089.90 83.17

LO C. crassus upper Santonian 50R-2, 35 KN24 1090.05 83.90

HO Q. enebrachium lower Santonian 50R-2, 60 KN25 1090.30 85.27

HO E. floralis upper Coniacian 50R-2, 68 KN28 1090.38 86.20

LO M. cubiformis upper Coniacian 50R-2, 74 KN28 1090.44 86.50

LO M. staurophora middle Coniacian 50R-2, 74 KN28 1090.44 86.92

LO M. furcatus lower Coniacian 50R-2, 74 KN28 1090.44 89.03

HO M. chiastius upper Cenomanian 50R-2, 78 NC10A 1090.48 93.48

HO G. bentonensis upper Cenomanian 50R-2, 78 Archaeocretacea 1090.48 93.50

HO A. infracretacea upper Albian 50R-2, 78 NC10A 1090.48 99.75

LO R. appenninica upper Albian 50R-CC Oppenninica 1091.78 ?

LO E. turriseiffelii upper Albian 51R-CC NC10A 1101.59 100.00

HO H. irregularis upper Albian 52R-1, 79 NC9B 1108.29 100.02

TR C. burwellensis upper Albian 52R-1, 79 NC9B 1108.29 100.53

HO C. erbae Aptian/Albian boundary 52R-3, 107 NC8A 1111.57 112.20

LO H. rischi lower Albian 52R-CC Rischi 1113.38 110.06

LO P. columnata base Albian 53R-3, 21 NC8A 1120.38 112.03

HO G. barri base Albian 53R-3, 21 Cheniourensis 1121.12 112.03

LO H. trochoidea upper Aptian 53R-3, 95 Gorbachikae 1121.40 ?

LCO R. achlyostaurion upper Aptian 54R-2, 5 NC7C 1128.35 ?

LO G. algerianus upper Aptian 54R-2, 31 Algerianus 1128.61 116.20

HO L. salomonii upper Aptian 54R-2, 35 NC7A 1128.64 116.75

HO L. cabri top lower Aptian 54R-3, 96 Cabri 1130.13 117.00

LO E. floralis top lower Aptian 54R-3, 119 NC7A 1130.36 118.10

LO R. gallagheri middle lower Aptian 54R-3, 119 NC7A 1130.36 120.78

HO P. sigali middle lower Aptian 54R-4, 7 Cabri 1130.74 ?

Event	Species	Stage	Core, section, interval (cm)	Zone/Subzone	Depth (mbsf)	Age (Ma)
HO	M. mura	upper Maastrichtian	39R-4, 100	CC25B	987.40	68.66
HO	G. fornicata	upper Maastrichtian	40R-3, 58	Gansseri	995.23	68.01
LO	C. gallica	upper Maastrichtian	41R-1, 55	CC25B	1001.95	68.66
HO	R. pennyi	upper Maastrichtian	41R-CC	Gansseri	1004.26	68.20
LO	G. gansseri	upper Maastrichtian	41R-CC	Gansseri	1004.26	71.37
LO	M. praemura	upper Maastrichtian	43R-1, 62	CC25B	1021.42	69.16
HO	S. biarcus (closed)	upper Maastrichtian	43R-1, 62	CC25B	1021.42	69.20
HO	G. bicrescenticus	upper Maastrichtian	43R-CC	CC25B	1022.08	68.33
LO	S. biarcus (elliptical)	upper Maastrichtian	43R-CC	CC25B	1022.08	69.73
LO	R. subpennyi	lower Maastrichtian	43R-CC	Aegyptiaca	1022.08	?
LO	Cribcrocorona spp.	upper Maastrichtian	44R-CC	CC25A	1031.28	?
HO	U. trifidum	lower Maastrichtian	45R-1, 56	CC24	1040.56	70.07
HO	U. gothicum	lower Maastrichtian	45R-1, 56	CC24	1040.56	70.07
HO	Q. gartneri	lower Maastrichtian	45R-1, 56	CC24	1040.56	70.40
LO	P. excolata	upper Campanian	45R-3, 1	Aegyptiaca	1042.71	72.70
HO	R. elegans	upper Campanian	46R-2, 22	CC22B	1051.22	74.00
HO	A. cymbiformis var. NT	upper Campanian	46R-2, 22	CC22B	1051.22	74.60
HO	Tranolithus sp. 1	upper Campanian	46R-2, 22	CC22B	1051.22	74.60
LO	R. levis	upper Campanian	47R-CC	CC22B	1060.70	74.72
LO	G. ventricosa	upper Campanian	47R-CC	Ventricosa	1060.70	77.60
LO	P. costulata	upper Campanian	47R-CC	Elevata	1060.70	79.10
LO	U. trifidum	upper Campanian	48R-1, 49	CC22A	1069.29	75.30
HO	A. parcus parcus	upper Campanian	48R-2, 49	CC 21	1070.79	75.18
HO	B. bevieri	upper Campanian	48R-2, 49	CC 21	1070.79	75.20
HO	W. fossacincta	upper Campanian	48R-2, 49	CC 21	1070.79	76.03
HO	E. eximius	upper Campanian	49R-CC	CC 21	1078.66	76.33
HO	C. ovalis	upper Campanian	49R-CC	CC 21	1078.66	77.15
LO	U. gothicum	upper Campanian	49R-CC	CC 21	1078.66	77.20
LO	B. magnus	upper Campanian	49R-CC	CC 21	1078.66	77.18
HO	B. hayii	lower Campanian	50R-1, 88	CC19A	1089.08	78.90
HO	C. crassus	lower Campanian	50R-1, 112	CC18	1089.32	80.70
HO	M. furcatus	lower Campanian	50R-1, 112	CC18	1089.32	81.24
LO	A. parcus constrictus	lower Campanian	50R-2, 20	CC18	1089.90	82.42
LO	A. parcus parcus	lower Campanian	50R-2, 20	CC18	1089.90	83.17
LO	C. crassus	upper Santonian	50R-2, 35	KN24	1090.05	83.90
HO	Q. enebrachium	lower Santonian	50R-2, 60	KN25	1090.30	85.27
HO	E. floralis	upper Coniacian	50R-2, 68	KN28	1090.38	86.20
LO	M. cubiformis	upper Coniacian	50R-2, 74	KN28	1090.44	86.50
LO	M. staurophora	middle Coniacian	50R-2, 74	KN28	1090.44	86.92
LO	M. furcatus	lower Coniacian	50R-2, 74	KN28	1090.44	89.03
HO	M. chiastius	upper Cenomanian	50R-2, 78	NC10A	1090.48	93.48
HO	G. bentonensis	upper Cenomanian	50R-2, 78	Archaeocretacea	1090.48	93.50
HO	A. infracretacea	upper Albian	50R-2, 78	NC10A	1090.48	99.75
LO	R. appenninica	upper Albian	50R-CC	Oppenninica	1091.78	?
LO	E. turriseiffelii	upper Albian	51R-CC	NC10A	1101.59	100.00
HO	H. irregularis	upper Albian	52R-1, 79	NC9B	1108.29	100.02
TR	C. burwellensis	upper Albian	52R-1, 79	NC9B	1108.29	100.53
HO	C. erbae	Aptian/Albian boundary	52R-3, 107	NC8A	1111.57	112.20
LO	H. rischi	lower Albian	52R-CC	Rischi	1113.38	110.06
LO	P. columnata	base Albian	53R-3, 21	NC8A	1120.38	112.03
HO	G. barri	base Albian	53R-3, 21	Cheniourensis	1121.12	112.03
LO	H. trochoidea	upper Aptian	53R-3, 95	Gorbachikae	1121.40	?
LCO	R. achlyostaurion	upper Aptian	54R-2, 5	NC7C	1128.35	?
LO	G. algerianus	upper Aptian	54R-2, 31	Algerianus	1128.61	116.20
HO	L. salomonii	upper Aptian	54R-2, 35	NC7A	1128.64	116.75
HO	L. cabri	top lower Aptian	54R-3, 96	Cabri	1130.13	117.00
LO	E. floralis	top lower Aptian	54R-3, 119	NC7A	1130.36	118.10
LO	R. gallagheri	middle lower Aptian	54R-3, 119	NC7A	1130.36	120.78
HO	P. sigali	middle lower Aptian	54R-4, 7	Cabri	1130.74	?

Notes: HO = highest occurrence, LO = lowest occurrence, LCO = lowest common occurrence. Shaded = planktonic foraminifer, unshaded = calcareous nannofossil. ? = uncertain age assignment. Ages are from University of Utah Paleontology Database and calibrated to the Gradstein et al. (1995) timescale. This table is also available in ASCII format.