platysternid
podocnemid
undershell
eupleurodiran
pleurodire
big-headed turtle
pleurodiran
carettochelyid
dermatemydid
plesiochelyid
emydid
Sternotherus
pleurosternid
genus Sternotherus
pond turtle
trionychian
podocnemidid
genus Streptopelia
Streptopelia
trionychid
geoemydid
testudinoid
leaf turtle
sinemydid
xinjiangchelyid
kinosternid
dermochelyoid
Testudinata
family Dermochelyidae
Dermochelyidae
order Testudinata
Chelonia
order Chelonia
Testudines
order Testudines
snapper
mossback
dermochelyid
Chelydra serpentina
common snapping turtle
clavicularium
alligator snapping turtle
pelomedusid
genus Chelydra
Chelydra
chelid
tortoiseshell
loggerhead
chelydrid
family Chelydridae