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Table 2. First and last occurrences of stratigraphic marker taxa recorded from Site 985.

Core, section Depth (mbsf) First occurrence Last occurrence Age
determination
162-985A-  
  early Miocene, Burdigalian
32X-1 290.49   Nematosphaeropsis downiei
(Brown, 1986: early Miocene/NN3-4)
Pyxidinopsis sp. 1 Manum et al. (1989)
(104-643A-15H-6 = 17 Ma)




32X-2 291.99 Labyrinthodinium truncatum
(Williams et al., in press: 17.5 Ma;
104-643A-14H-5 = 16.8 Ma)




34X-2 311.19   Batiacasphaera baculata sensu Manum et al.
(1989) (= "Kallosphaeridium biornatum" group of Heilmann-Clausen and Costa, 1990)
(104-643A-24X-5 = 18 Ma)
Lophocysta sulcolimbata
(104-643A-11H-5 = 12 Ma)




34X-5 315.69   Cordosphaeridium minimum = Dinocyst II,
Manum (1976) and Manum et al. (1989)
(104-643A-23X-5 = 18 Ma)




35X-1 319.39 Hystrichosphaeropsis obscura
(Williams et al., in press: 19 Ma;
104-643A-37X-3 = 22.5 Ma) 		Hystrichokolpoma sp. 2 Manum et al. (1989)
(Zevenboom, 1995: 17.3 Ma; 104-643A-28X-7 = 19 Ma), Evittosphaerula paratabulata
(104-643A-27X-5 = 19 Ma




35X-2 320.89   Apteodinium australiense
(Williams et al., in press: 12.25 Ma;
104-643A-19X-6 = 16 Ma)




35X-6 326.89   Leptodinium sp. III Manum (1976) and Manum et al. (1989) (104-643A-31X-2 = 20 Ma




36X-2 330.49 Nematosphaeropsis downiei
(Powell, 1986a as Nematosphaeropsis? sp. A: 23.8 Ma) Hystrichokolpoma sp. 2 Manum et al. (1989) (Zevenboom, 1995: 17.3 Ma; 104-643A-36X-5 = 22 Ma)




36X-5 334.99 Lophocysta sulcolimbata
(104-643A-32X-1 = 20.5 Ma)




early Miocene Aquitanian
37X-5 344.59 Evittosphaerula paratabulata
(104-643A-34X-2 = 21 Ma)




39X-5 363.79   Leptodinium italicum (= Leptodinium sp. II Manum, 1976; Impagidinium sp. 1 Manum et al., 1989)
(Williams et al., in press: 18.51 Ma; 104-643A-28X-7 = 19 Ma; 38-338-14-2 = 20 Ma)




40X-2 368.89 Batiacasphaera baculata sensu Manum et al. (1989)
(= "Kallosphaeridium biornatum group" of Heilmann-Clausen and Costa, 1990)
(104-643A-41X-1 = 24 Ma)




41X-6 384.09   Caligodinium amiculum
(Williams et al., in press: 21.1 Ma;
104-643A-36X-5 = 22 Ma)




48X-3 447.49   Cordosphaeridium cantharellum
(Williams et al., in press: 17.95 Ma;
104-643A-22X-5 = 18 Ma)




48X-4 448.99 Leptodinium III
Manum (1976) and Manum et al. (1989)
(104-643A-33X-1 = 21 Ma)





48X-6 451.99   Chiropteridium galea
(Williams et al., in press: 22.5 Ma;
104-643A-44X-1 = 25 Ma) 		?early Miocene





50X-5 469.59   Spiniferella cornuta
(Benedek, 1972: 27 Ma; 104-643A-47X-4)
Distatodinium biffii
(Williams et al., in press: 24.5 Ma;
104-643A-45X-6: 25.5 Ma) 		Oligocene, possibly Chattian





51X-2 474.69   Areoligera semicirculata (= Glaphyrocysta intricata in Manum et al. (1989)
(Williams et al., in press: 30.5 Ma; 104-643A-47X-1) 		Rupelian




52X-1 482.79 Leptodinium italicum (= Leptodinium sp. II Manum, 1976; Impagidinium sp. 1 Manum et al., 1989)
(Williams et al., in press: 31.82 Ma;
38-338-24-2 = 27 Ma; 104-643A-46X-5) 		Lophocysta sp. 2 (104-643A: in 48X-6 only)




53X-4 496.89   Deflandrea sp. B of Powell (1986b) sensu Manum et al. (1989) (104-643A-47X-4)




54X-2 503.49 Pyxidinopsis sp. 1 Manum et al. (1989)
(104-643A-48X-1) 		Saturnodinium pansum (Williams et al., in press:
30.24 Ma; 151-908A-24X)




54X-6 509.49 Batiacasphaera micropapillata
(Williams et al., in press: 30.5 Ma; 104-643A-48X-1)




55X-4 516.09   Gen. et sp. indet.
(104-643A: in 48X-1 only)




56X-1 521.29 Gen. et sp. indet.
(104-643A: in 48X-1 only)




59X-1 550.09   Dinocyst 3 Manum et al. (1989)
(104-643A-48X-6)




59X-2 551.59   Svalbardella cooksoniae
(Johnsen, 1983: 336-21-1 = 30.5 Ma; Costa and Manum, 1988: approximately 30.5 Ma; 104-643A-50X-1)




60X-3 562.79 Reticulatosphaera actinocoronata
(Williams et al., in press: 35.1 Ma; 104-643A-47X-1) Lophocysta sp. 2 (104-643A: in 48X-6 only)




60X-5 565.79 Apteodinium spiridoides
(Williams et al., in press: 31.5 Ma; 104-643A-46X-1) 		Spiniferites sp. 1 Manum et al. (1989)
(104-643A-49X-3)




61X-3 571.57 Distatodinium biffii
(Williams et al., in press: 28.5 Ma;
104-643A-46X-3)




62X-1 579.09 Dinocyst 3 Manum et al. (1989)
(104-643A-48X-6)
Deflandrea sp. B of Powell (1986b)
sensu Manum et al. (1989)
(104-643A-53X-3)
Areoligera semicirculata
(Williams et al., in press: 33.5 Ma)
Spiniferites sp. 1 Manum et al. (1989)
(104-643A-49X-4)




Notes: First and last occurrences from published sources are quoted above (Leg 104, Site 643 data: Manum et al. [1989]; Leg 151, Site 908 data: Poulsen et al. [1997]; Leg 38, Site 338 data: Manum [1976]. Absolute ages quoted for cores from Sites 643 and 338 are according to R.M. Goll [unpubl. data]).

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