pliosaurian
Triturus vulgaris
genus Batrachoseps
water-salamander
plesiadapoid
Batrachoseps
common newt
superorder Labyrinthodonta
Labyrinthodontia
superorder Labyrinthodontia
dusky salamander
Labyrinthodonta
Desmograthus
ambystomid
genus Plesiosaurus
Plesiosauria
genus Desmograthus
salamanderlike
suborder Plesiosauria
ambystomatid
actinolepid
bolitoglossine
siren
placodont
pliosauroid
Salamandra
platyceratid
champsosaur
genus Salamandra
pleurosaur
salamandrous
plesiopid
phliantid
salamandrid
ambystomid salamander
mother-of-pearl
collembola
triton
paramelitid
plecopteran
pleurocerid
newt
mudpuppy
pleurodeline
Ambystoma mexicanum
platystictid