Heraldic Primer: Reptiles

http://heraldry.sca.org/primer/reptiles.html (defunct)

Though uncommon, it is not unheard of to find reptiles and amphibians in heraldy. The most commonly found of these is the serpent or snake, which is seen either nowed (or knotted) or erect.

A serpent knowed	A serpent erect

Other reptiles and amphibians which are seen in armory include the lizard, the turtle and the frog. Note that all are depicted in a 'top-down' perspective which is called tergiant.

A lizard tergiant	A turtle tergiant	A frog tergiant