sauro-
herpetology
podocnemid
alligatorid
dortokid
luth
Chelydra
Dermochelyidae
testudinoid
tortoiseshell
family Elapidae
Elapidae
testudinate
genus Chelydra
family Dermochelyidae
turn turtle
Kinosternidae
leaf turtle
reptile family
trionychian
family Kinosternidae
thalassochelydian
undershell
pleurodiran
yacare
Lepidosauria
platysternid
trionychid
turtlet
mugger crocodile
Chinese alligator
genus Gerrhonotus
Gerrhonotus
subclass Lepidosauria
sandownid
genus Calliophis
Trionychidae
anapsid
pond turtle
Calliophis
Crotaphytus
leatherback
genus Chelonia
Callophis
genus Crotaphytus
family Trionychidae
genus Callophis
Black Tortoise of the North