Nature - USA (2020-10-15)

JuyuandongLonggudong

Sangiran

Sanhe

Semedo

Khok SungPha Bong

Baxian

Boh Damban

Nam Lo

t

Quza

i

Sibrambang

Wa

jak

Indochina Sundaland

Early Pleistocene Middle Pleistocene

Late Pleistocene Holocene

-36

-35

-34

-33

-32

-31

-30

-29

-28

-27

-26

-25

-24

-23

-36

-35

-34

-33

-32

-31

-30

-29

-28

-27

-26

-25

-24

-23

-36

-35

-34

-33

-32

-31

-30

-29

-28

-27

-26

-25

-24

-23

-36

-35

-34

-33

-32

-31

-30

-29

-28

-27

-26

-25

-24

-23

Mohui

Upper Pu

bu

Tham

Wiman Nak

in

Cipeundeuy

δ

13

C

di

et

(‰) (

VP

DB

)

δ

13

C

di

et

(‰) (

VP

DB

)

δ

13

C

diet

(‰) (

VP

DB

)

δ

13

C

di

et

(‰) (

VP

DB

)

Extended Data Fig. 3 | Distribution of δ^13 C values for browsers across fossil
sites through Southeast Asia. Indochina, dark green; Sundaland, light green.
Horizontal line represents the −29‰ zone that indicates the beginning of
subcanopy and closed-canopy environments. The long lower whiskers in the
box and whisker plot, which indicate a very negatively skewed distribution, are
most closely associated with highly stratified forests. The boxes show the
median and the lower (25%) and upper (75%) quartiles; the whiskers encompass

the minimum and maximum values. Independent sample sizes: Juyuandong,

n = 4; Longudong, n = 26; Mohui, n = 5; Sanhe, n = 25; Semedo, n = 6; Sangiran,

n = 4; Upper Pubu, n = 4; Khok Sung, n = 5; Pha Bong, n = 15; Tham Wiman Nakin,

n = 10; Baxian, n = 32; Boh Damban, n = 18; Nam Lot, n = 39; Quzai, n = 32;

Sibrambang, n = 6; Wajak, n = 4; Cipeundeuy, n = 2; Indochina, n = 74; and

Sundaland, n = 1 58.