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Table 2 Values of δ18O and δ13C of South American fossil Equus (Amerhippus).

From: Ancient feeding ecology inferred from stable isotopic evidence from fossil horses in South America over the past 3 Ma

Species name (age)

Specimen

Skeletal

Altitude

Locality (country)

Latitude

d13C (CO3)

d18O (PO4)

d18O (CO3)

 

number

tissue

m.asl.

  

‰ PDB

‰ V-SMOW

‰ V-SMOW

Equus sp. (Late Pl)*

UCMP.38100

e

440

La Venta (Co)

3N

-0.7

 

29.9

Equus sp. (Late Pl)*

ING 184268

e

440

La Venta (Co)

3N

-2.2

 

32.4

E. insulatus (Middle Pl)

V.543

b

2500

Rio Chiche (Ec)

0

-5.7

13.6

23.5

E. insulatus (Middle Pl)

V.542

t

2500

Rio Chiche (Ec)

0

-4.8

16.7

25.1

E. insulatus (Middle Pl)

V.542

b

2500

Rio Chiche (Ec)

0

-3.2

15.7

24.6

E. insulatus (Middle Pl)

V.544

b

2500

Rio Chiche (Ec)

0

-5.8

15.5

24.3

E. andium (26 to 19 ka BP)

V.455

b

2778

Alangasí (Ec)

0

-5.5

15.0

24.4

E. andium (26 to 19 ka BP)

V.430

b

2778

Alangasí (Ec)

0

-6.9

13.1

23.3

E. andium (26 to 19 ka BP)

V.4014

b

2778

Alangasí (Ec)

0

-6.3

14.8

23.0

E. andium (26 to 19 ka BP)

V.2495

b

2778

Quebrada Colorada (Ec)

2S

-6.2

14.3

23.9

E. andium (26 to 19 ka BP)

V.2417

b

2778

Quebrada Colorada (Ec)

2S

-6.7

11.3

22.0

E. andium (26 to 19 ka BP)

V.2163

b

2778

Quebrada Colorada (Ec)

2S

-5.8

13.2

21.7

E. andium (20 to 12 ka BP)

V.2161

b

2778

Punín (Ec)

2S

-9.9

14.3

25.2

E. andium (20 to 12 ka BP)

V.2152

b

2778

Punín (Ec)

2S

-5.8

11.4

23.8

E. andium (20 to 12 ka BP)

V.465

b

2778

Punín (Ec)

2S

-6.1

14.9

23.6

E. santaelenae (12 to 8 ka BP)

V.3037

d

0

La Carolina (Ec)

2S

9.2

22.1

34.9

E. santaelenae (12 to 8 ka BP)

V.3037

e

0

La Carolina (Ec)

2S

1.5

22.1

32.6

E. santaelenae (12 to 8 ka BP)

V.3037

b

0

La Carolina (Ec)

2S

6.1

21.8

33.5

E. santaelenae (12 to 8 ka BP)

V.69

b

0

La Carolina (Ec)

2S

-1.5

21.3

32.0

E. santaelenae (12 to 8 ka BP)*

V-3037

e

0

La Carolina (Ec)

2S

1.8

 

32.7

E. santaelenae (12 to 8 ka BP)*

V-68

e

0

La Carolina (Ec)

2S

5.4

 

33.6

E. santaelenae (26 to 19 ka BP)*

F:AM 131869

e

0

Salinas Oil Field (Ec)

3S

-0.8

 

32.6

E. santaelenae (26 to 19 ka BP)*

F:AM 131868

e

0

Salinas Oil Field (Ec)

3S

3.0

 

32.5

E. santaelenae (26 to 19 ka BP)*

ROM.3471C

e

85

Talara Tar Pit (Peru)

5S

2.1

 

27.0

E. neogeus(26 to 19 ka BP)*

uncatalogued

e

200

Ourolandia (Br)

12S

1.1

 

29.5

E. neogeus(26 to 19 ka BP)*

uncatalogued

e

200

Ourolandia (Br)

12S

1.7

 

30.6

E. neogeus(28 to 10 ka BP)*

UF.uncatalogued

e

500

Naupua-3 (Bo)

21S

0.2

 

31.1

E. neogeus(28 to 10 ka BP)*

UF.uncatalogued

e

500

Naupua-1 (Bo)

21S

0.1

 

29.8

E. insulatus (44 to 21 ka BP)

MACN 1501A

b

1866

Tarija (Bo)

22S

-5.8

17.4

25.6

E. insulatus (44 to 21 ka BP)

MACN 1501B

t

1866

Tarija (Bo)

22S

-5.0

20.9

26.2

E. insulatus (44 to 21 ka BP)

MACN 1509

t

1866

Tarija (Bo)

22S

-8.3

20.0

28.3

E. insulatus (44 to 21 ka BP)*

UF.uncatalogued

e

1866

Tarija (Bo)

22S

-4.8

 

25.2

E. insulatus (44 to 21 ka BP)*

UF.uncatalogued

e

1866

Tarija (Bo)

22S

-2.9

 

24.4

E. insulatus (44 to 21 ka BP)*

UF.uncatalogued

e

1866

Tarija (Bo)

22S

-2.6

 

25.8

E. insulatus (44 to 21 ka BP)*

UF.uncatalogued

e

1866

Tarija (Bo)

22S

-2.3

 

26.4

E. insulatus (44 to 21 ka BP)*

UF.90750

e

1866

Tarija (Bo)

22S

-2.9

 

26.2

E. insulatus (44 to 21 ka BP)*

UF.90895

e

1866

Tarija (Bo)

22S

-3.5

 

23.5

E. insulatus (44 to 21 ka BP)*

UF.90653

e

1866

Tarija (Bo)

22S

-4.1

 

26.8

E. insulatus (44 to 21 ka BP)*

UF.90764

e

1866

Tarija (Bo)

22S

-4.1

 

24.2

E. insulatus (44 to 21 ka BP)*

UF.91972

e

1866

Tarija (Bo)

22S

-2.7

 

24.9

E. neogeus (28 to 10 ka BP)

MCNAM-PV-83

e

200

La Banda (Ar)

28S

-1.0

 

28.0

E. neogeus(Late Pl)*

MLP.52.IX.29-91

e

10

Esperanza, Santa Fé (Ar)

32S

-0.8

 

30.8

E. neogeus(Middle Pl)*

AMNH.11154

e

10

Buenos Aires (Ar)

35S

-10.7

 

30.8

E. neogeus(Middle Pl)*

AMNH.11154

e

10

Buenos Aires (Ar)

35S

-10.3

 

30.6

E. neogeus(Middle Pl)*

MLP.91.VI.5-1

e

50

Magdalena (Ar)

35S

-10.6

 

30.3

E. neogeus (28 to 10 ka BP)

MACN 11636

b

10

Luján (Ar)

35S

-11.7

21.2

30.4

E. neogeus (28 to 10 ka BP)

MLP 6-402

b

10

Luján (Ar)

35S

-11.2

20.1

30.6

E. neogeus (Middle Pl)

MLP s/s

t

10

Cant. Vial. Prov.(Ar)

35S

-7.5

21.2

30.5

E. neogeus (Middle Pl)

MLP s/s

b

10

Cant. Vial. Prov.(Ar)

35S

-11.5

20.8

32.1

E. neogeus (28 to 10 ka BP)

MACN 6116

t

50

Arroyo Tapalqué (Ar)

38S

-8.5

17.3

29.8

E. neogeus (28 to 10 ka BP)

MACN 6116

b

50

Arroyo Tapalqué (Ar)

38S

-7.9

21.2

29.7

E. neogeus (28 to 10 ka BP)

MACN 9753

e

100

Río Quequén Salado (Ar)

38S

-9.9

21.3

30.5

E. neogeus (28 to 10 ka BP)

MACN 9753

d

100

Río Quequén Salado (Ar)

38S

-10.1

21.3

30.3

E. neogeus (28 to 10 ka BP)

MACN 9753

b

100

Río Quequén Salado (Ar)

38S

-8.0

20.4

29.8

E. neogeus (28 to 10 ka BP)

MACN 9751

b

100

Río Quequén Salado (Ar)

38S

-7.8

21.0

30.9

E. neogeus (28 to 10 ka BP)

MACN 9751

d

100

Río Quequén Salado (Ar)

38S

-8.3

22.9

31.4

E. neogeus (28 to 10 ka BP)

MLP 63-VI-1017

b

100

Río Quequén Salado (Ar)

38S

-9.0

20.7

30.3

E. neogeus(12.8 to 11.5 ka BP)*

MLP.52.X.5-3

e

100

Rio Quequén Salado (Ar)

38S

-8.5

 

30.7

E. neogeus(12.8 to 11.5 ka BP)*

MLP.52.X.5-3

e

100

Rio Quequén Salado (Ar)

38S

-7.8

 

30.9

E. neogeus (28 to 10 ka BP)

MLP s/s

t

10

P. Hermengo (Ar)

38S

-7.2

20.1

29.7

E. neogeus (28 to 10 ka BP)

MLP 80-VIII-13-4

b

10

Paso Otero (Ar)

38S

-10.7

20.1

29.8

E. neogeus (28 to 10 ka BP)

MLP 80-VIII-13-63

b

10

Paso Otero (Ar)

38S

-11.0

18.4

29.8

E. neogeus (28 to 10 ka BP)

MLP.80.VIII.13-93

e

10

Paso Otero (Ar)

38S

-10.2

 

31.3

E. neogeus (around 130 ka)

MLP s/s

t

10

Centinela Mar (Ar)

38S

-10.0

19.1

30.3

E. neogeus (12.8 to 11.5 ka BP)

MACN 14417

d

10

Zanjón Seco (Ar)

38S

-11.4

20.3

29.3

E. neogeus (12.8 to 11.5 ka BP)

MACN 14417

t

10

Zanjón Seco (Ar)

38S

-10.4

21.1

29.1

E. neogeus (12.8 to 11.5 ka BP)

MACN 14417

e

10

Zanjón Seco (Ar)

38S

-10.5

21.2

30.7

E. neogeus (12.8 to 11.5 ka BP)

MACN 14417

b

10

Zanjón Seco (Ar)

38S

-10.9

19.9

29.7

  1. Samples with the same "specimen number" correspond to the same individuals. The bones correspond to the mandibular or maxillary remains that contained the teeth that were analyzed. Abbreviations as in Table 1. * taken from MacFadden et al. [25].