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Table 4 (continued). (F) Pacific Ocean—Middle Miocene.
 
EPOCH RADIOLARIAN
EVENT

Pacific Ocean

Western Central Eastern
literature DSDP
586/289
DSDP
573
DSDP
503A
source 2, 3 2, 3 3
Middle Miocene Ev D. petterssoni->
D. hughesi
8.2
8.5
7.6
7.7

Ev L. neotera->
L. bacca
8.6
8.7
8.0
8.1

Tm Stichocorys wolffii 8.1
8.2
8.0
8.1

Tm Cyrtocapsella japonica
8.9
9.1

Tm Lithopera thornburgi


Tm Cyrtocapsella cornuta 11.4
11.5
11.6
11.8

Tm Cyrtocapsella tetrapera 11.8
12.1
11.6
11.8

Tm Carpocanopsis cristata 9.5
10.1
9.9
10.1

Bm Phormostichoartus doliolum 11.0
11.3
8.0
8.1

Tm Dorcadospyris alata 11.8
12.0
13.5
13.7

Tm Liriospyris parkerae


Bm Cyrtocapsella japonica


Bm Diartus petterssoni 11.0
11.3
12.5
12.7

Tm Carpocanopsis bramlettei 13.1
13.3
14.8
14.9

Ev L. renzae->
L. neotera
12.1
12.3
11.6
11.8

Ev D. mammifera->
D. laticonus



Bm Lithopera thornburgi


Bm Phormostichoartus corbula


Tm Calocycletta virginis 13.7
13.8
15.0
15.1

Bm Dictyocoryne ontongensis


Tm Calocycletta costata 14.5
14.6
15.0
15.1

Notes. "Tm" denotes a morphotypic last appearance, "Bm" denotes a morphotypic first appearance. An arrow indicates an evolutionary transition (Ev). Ages that are shaded were considered by the original authors to be unreliable. The absolute ages used are in accordance with the chronostratigraphy of Berggren et al. (1985). For further information see the original reports. 1. Caulet et al., 1993. 2. Johnson et al., 1989. 3. Johnson and Nigrini, 1985.

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