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TABLE 1. Species level data composition. Species abundances of select
phylogenetic classes, total species, and the number of habitat types within each
sub-epoch are listed. Epoch and sub-epoch ages correspond to the ages of their
base.1 Species level data composition. Species abundances of select phylogenetic
classes, total species, and the number of habitat types within each sub-epoch
are listed. Epoch and sub-epoch ages correspond to the ages of their base.
|
Interval
|
Time (Ma)
|
Duration (m.y.)
|
Bivalve Species
|
Gastropod Species
|
Total Species
|
Habitat Types
|
|
Holocene
|
0.00
|
0.00
|
241
|
279
|
651
|
15
|
|
Pleistocene
|
2.6
|
2.59
|
1188
|
1835
|
4017
|
29
|
|
Pliocene
|
5.3
|
2.7
|
1324
|
1891
|
4644
|
28
|
|
late Miocene
|
11.6
|
6.3
|
1258
|
1422
|
3568
|
33
|
|
middle Miocene
|
16.0
|
4.4
|
1374
|
1286
|
4081
|
33
|
|
early Miocene
|
23.0
|
7.0
|
1439
|
1813
|
4441
|
32
|
|
late Oligocene
|
28.4
|
5.4
|
597
|
412
|
1518
|
30
|
|
early Oligocene
|
33.9
|
5.5
|
721
|
699
|
1792
|
25
|
|
late Eocene
|
40.4
|
6.5
|
926
|
1287
|
3419
|
34
|
|
middle Eocene
|
48.6
|
8.2
|
954
|
1020
|
3002
|
32
|
|
early Eocene
|
55.8
|
7.2
|
329
|
475
|
1377
|
19
|
|