Fossil collecting.
Johanson
D C
DC
Kimbel
W H
WH
Walter
R C
RC
Vondra
C
C
Yemane
T
T
Aronson
J L
JL
Eck
G G
GG
Rak
Y Z
YZ
Hovers
E
E
Reed
K E
KE
D004989:Ethics; D005002:Ethiopia; D005580:Fossils; D010163:Paleontology / Q000592:standards*