|
Groups
|
n
|
Mean δ13C
|
SD
|
Range
|
n
|
Mean δ18O
|
SD
|
Range
|
|---|
| | |
(‰)PDB
|
(‰)
|
(‰)
| |
(‰)V-SMOW
|
(‰)
|
(‰)
|
|---|
|
A
|
31
|
-10.1
|
1.39
|
-12.9 to -6.6
|
26
|
28.3
|
2.20
|
24.2 to 31.5
|
|
B
|
68
|
-5.2
|
4.83
|
-11.66 to 9.21
|
68
|
28.5
|
3.32
|
21.7 to 34.9
|
|
C
|
17
|
-10.2
|
1.39
|
-12.22 to -8.08
|
17
|
29.0
|
2.17
|
24.2 to 31.5
|
|
D
|
14
|
-10.0
|
1.44
|
-12.9 to -6.6
|
9
|
27.0
|
1.74
|
25.3 to 29.8
|
|
E
|
52
|
-5.5
|
5.43
|
-11.66 to 9.21
|
50
|
29.4
|
3.17
|
21.7 to 34.9
|
|
F
|
16
|
-4.3
|
1.61
|
-8.31 to -2.3
|
16
|
25.3
|
1.28
|
23.5 to 28.3
|
|
G
|
43
|
-5.3
|
5.93
|
-11.66 to 9.21
|
41
|
30.7
|
1.48
|
27 to 34.9
|
|
H
|
25
|
-5.1
|
1.85
|
-9.86 to -2.3
|
25
|
24.6
|
1.51
|
21.7 to 28.3
|
|
I
|
12
|
-9.8
|
1.34
|
-12.22 to -6.6
|
8
|
25.8
|
1.30
|
25.8 to28.7
|
|
J
|
19
|
-10.3
|
1.42
|
-8.08 to -12.90
|
17
|
29.7
|
1.00
|
29.7 to 31.5
|
- A: all Hippidion specimens; B: all Equus (Amerhippus) specimens; C: Hippidion from the Late Pleistocene; D: Hippidion from the Late Pliocene to Early Pleistocene; E: Equus (Amerhippus) from the Late Pleistocene; F: Equus (Amerhippus) from the Middle Pleistocene; G: Equus (Amerhippus) from the plains landscape; H: Equus (Amerhippus) from the mountain corridor; I: Hippidion from the plains landscape and J: Hippidion from the mountain corridor. n: number of samples. SD: standard deviation.
