CLASSIFICATION. 
—— ee 
aDP MHD 
< 
apprtphjaVg 
opp iphuawusad 
Pleisto- 
appih}ayI0}IMND 
DPM )AYIOULLAT 
appryohUuorvl 
IDPLULPNISIL, 
appiphugy 
Pliocene 
Miocene 
DpPit Uo2OUO 
IDPISNPIULOPAT 
cene 
app ihjayoojnusagq —> 
9091607807 0.bq —> |—_—$_———— - - - + 
apprijaya0x0 [, —> 
DD PLUoUWOISD] 
appiphuawyjog 
IDPLULIISOJIAT, 
IDPLUIVT 
ss 
ceous 
avprphwassP) OY L 
Ds nap 
IDPLULISOLNI) | —> ——_ | 
anpiijayI0180)q—> —__—__———— - ---- 
ceous 
oye 
4 
Jurassic 
todira 
JryP 
Primitive iC 
aAlmphichelydia 
Triassic 
e Thecophora 
Primitir 
Permian 
1es 
genetic chart showing supposed relationships of the famil 
and higher groups of turtles. 
Fic. 8.—Phylo 
