Datum
|
Type
|
Upper
depth (mcd) |
Lower
depth (mcd) |
Minimum
age (Ma) |
Maximum
age (Ma) |
|
---|---|---|---|---|---|---|
T | Pseudoemiliania lacunosa | CN | 3.07 | 3.90 | 0.46 | 0.46 |
T | Globorotalia tosaensis | PF | 4.19 | 5.12 | 0.61 | 0.61 |
B | Gephyrocapsa parallela | CN | 6.05 | 7.04 | 0.98 | 1.03 |
|
C1n (o) | PMAG | 6.15 | 6.47 | 0.781 | 0.781 |
|
C1r.1n (y) | PMAG | 7.44 | 7.59 | 0.988 | 0.988 |
|
C1r.1n (o) | PMAG | 7.99 | 8.17 | 1.072 | 1.072 |
T | Large Gephyrocapsa | CN | 8.74 | 9.52 | 1.22 | 1.26 |
|
Cobb Mountain (y) | PMAG | 8.89 | 9.07 | 1.173 | 1.173 |
|
Cobb Mountain (o) | PMAG | 9.09 | 9.42 | 1.185 | 1.185 |
B | Medium Gephyrocapsa spp. | CN | 13.49 | 13.84 | 1.69 | 1.71 |
|
C2n (y) | PMAG | 15.46 | 15.56 | 1.785 | 1.775 |
|
Zone CN13a Assemblage | CN | 16.01 | 17.22 | 1.7 | 1.8 |
B | Globorotalia truncatulinoides | PF | 16.01 | 22.39 | 2.02 | 2.02 |
|
C2n (o) | PMAG | 16.86 | 16.96 | 1.942 | 1.942 |
|
Zone CN12aB Assemblage | CN | 17.22 | 35.72 | 2.83 | 3.66 |
|
C2An.1n (y) | PMAG | 24.18 | 24.39 | 2.582 | 2.582 |
B | Globorotalia tosaensis | PF | 25.73 | 31.84 | 3.35 | 3.35 |
T | Globorotalia plesiotumida | PF | 31.84 | 35.72 | 4.15 | 4.15 |
|
C2An.3n (o) | PMAG | 35.41 | 36.61 | 3.596 | 3.596 |
|
Zone CN10c Assemblage | CN | 35.72 | 46.03 | 4.56 | 5.05 |
B | Globoconella conomiozea | PF | 42.72 | 46.03 | 7.12 | 7.12 |
B | Globorotalia crassaformis (s.l.) | PF | 46.03 | 51.28 | 4.31 | 4.31 |
T | Subbotina angiporoides | PF | 68.36 | 78.12 | 29.67 | 29.67 |
T | Ericsonia formosa | CN | 75.70 | 75.87 | 32.9 | 32.9 |
|
C13n (y) | PMAG | 76.67 | 77.14 | 33.058 | 33.058 |
T | Discoaster saipanensis | CN | 78.83 | 79.62 | 34 | 34 |
T | Discoaster barbadiensis | CN | 78.83 | 79.62 | 34.2 | 34.2 |
|
C13n (o) | PMAG | 78.92 | 79.07 | 33.545 | 33.545 |
B | Isthmolithus recurvus | CN | 81.08 | 81.24 | 36.6 | 36.6 |
T | Globigerinatheka index | PF | 83.94 | 87.97 | 34.3 | 34.3 |
B | Globigerinatheka semiinvoluta | PF | 87.97 | 94.13 | 38.4 | 38.4 |
|
C23n (y) | PMAG | 93.01 | 93.31 | 50.778 | 50.778 |
B | Discoaster sublodoensis | CN | 93.27 | 93.72 | 49.3 | 49.3 |
T | Morozovella aragonensis | PF | 94.13 | 100.84 | 43.6 | 43.6 |
T | Tribrachiatus orthostylus | CN | 96.91 | 97.91 | 51 | 51 |
T | Morozovella aequa | PF | 104.97 | 111.40 | 52.89 | 52.89 |
T | Subbotina velascoensis | PF | 104.97 | 111.40 | 53.5 | 53.5 |
B | Discoaster lodoensis | CN | 107.67 | 108.11 | 52.4 | 52.4 |
B | Morozovella lensiformis | PF | 111.40 | 115.69 | 53.68 | 53.68 |
T | Subbotina triangularis | PF | 111.40 | 115.69 | 54.07 | 54.07 |
T | Discoaster multiradiatus | CN | 113.25 | 113.95 | 53 | 53 |
B | Morozovella aragonensis | PF | 115.69 | 120.29 | 52.3 | 52.3 |
B | Sphenolithus radians | CN | 118.04 | 118.94 | 53.3 | 53.3 |
B | Tribrachiatus orthostylus | CN | 118.04 | 118.94 | 53.4 | 53.4 |
|
C24n (o) | PMAG | 120.42 | 120.52 | 53.347 | 53.347 |
B | Morozovella gracilis | PF | 138.01 | 139.49 | 54.46 | 54.46 |
T | Stensioeina beccariiformis | BF | 140.04 | 140.08 | 55 | 55 |
B | Morozovella subbotinae | PF | 151.93 | 156.65 | 55.9 | 55.9 |
|
C25n (y) | PMAG | 153.21 | 153.31 | 55.904 | 55.904 |
B | Discoaster multiradiatus | CN | 153.76 | 155.26 | 56.2 | 56.2 |
T | Globanomalina pseudomenardii | PF | 156.65 | 161.95 | 55.9 | 55.9 |
T | Acarinina mckannai | PF | 156.65 | 161.95 | 56.3 | 56.3 |
B | Discoaster okadai | CN | 157.22 | 158.32 | 56.4 | 56.4 |
|
C25n (o) | PMAG | 159.21 | 159.46 | 56.391 | 56.391 |
B | Acarinina soldadoensis | PF | 161.95 | 166.23 | 56.5 | 56.5 |
B | Morozovella aequa | PF | 161.95 | 166.23 | 56.5 | 56.5 |
B | Heliolithus riedelii | CN | 169.39 | 170.03 | 57.3 | 57.3 |
B | Discoaster mohleri | CN | 170.03 | 170.89 | 57.5 | 57.5 |
|
C26n (y) | PMAG | 171.41 | 171.94 | 57.554 | 57.554 |
|
C26n (o) | PMAG | 173.14 | 173.57 | 57.911 | 57.911 |
B | Acarinina subsphaerica | PF | 173.49 | 177.98 | 59.2 | 59.2 |
B | Heliolithus kleinpellii | CN | 174.39 | 175.39 | 58.2 | 58.2 |
B | Sphenolithus anarrhopus | CN | 175.39 | 175.89 | 58.4 | 58.4 |
B | Acarinina mckannai | PF | 177.98 | 182.36 | 59.1 | 59.1 |
B | Morozovella velascoensis | PF | 177.98 | 188.16 | 60 | 60 |
B | Heliolithus cantabriae | CN | 178.69 | 179.79 | 58.8 | 58.8 |
B | Globanomalina pseudomenardii | PF | 182.36 | 188.16 | 59.2 | 59.2 |
B | Morozovella conicotruncata | PF | 188.16 | 198.79 | 60.9 | 60.9 |
B | Morozovella angulata | PF | 188.16 | 198.79 | 61 | 61 |
B | Fasciculithus pileatus | CN | 190.72 | 191.42 | 59.3 | 59.3 |
B | Fasciculithus spp. | CN | 191.66 | 192.57 | 60 | 60 |
B | Sphenolithus primus | CN | 192.43 | 193.33 | 60.6 | 60.6 |
B | Chiasmolithus bidens | CN | 195.43 | 196.33 | 60.7 | 60.7 |
|
C27n (y) | PMAG | 195.43 | 195.63 | 60.920 | 60.920 |
|
C27n (o) | PMAG | 197.83 | 198.17 | 61.276 | 61.276 |
B | Praemurica uncinata | PF | 198.79 | 210.49 | 61.2 | 61.2 |
|
C28n (y) | PMAG | 204.59 | 204.74 | 62.499 | 62.499 |
|
C28n (o) | PMAG | 209.83 | 210.03 | 63.634 | 63.634 |
B | Chiasmolithus danicus | CN | 209.94 | 210.49 | 64.2 | 64.2 |
|
C29n (y) | PMAG | 210.98 | 211.08 | 63.976 | 63.976 |
B | Cruciplacolithus tenuis s.s. | CN | 213.61 | 213.98 | 64.5 | 64.5 |
B | Cruciplacolithus primus | CN | 213.98 | 214.95 | 64.8 | 64.8 |
B | Praemurica inconstans | PF | 214.62 | 215.52 | 63 | 63 |
B | Subbotina triloculinoides | PF | 215.52 | 216.00 | 64.5 | 64.5 |
T | Parvularugoglobigerina eugubina | PF | 216.29 | 216.48 | 64.9 | 64.9 |
B | Parvularugoglobigerina eugubina | PF | 216.48 | 216.58 | 64.97 | 64.97 |
B | Micula prinsii | CN | 221.75 | 223.98 | 65.4 | 65.4 |
|
C30n (y) | PMAG | 224.29 | 224.28 | 65.578 | 65.578 |
Notes: T = top, B = bottom. o = oldest, y = youngest. CN = calcareous nannoplankton, PF = planktonic foraminifers, BF = benthic foraminifers, PMAG = paleomagnetic reversals. This table is also available in ASCII.