N. viridescens, the common newt, is native to North America, and an urodelian amphibian.
From the sciencedaily.com
The species of amphibian native to Britain are the great crested newt, smooth newt, palmate newt, common toad, natterjack toad, common frog and the pool frog.
From the en.wikipedia.org
Three amphibians are found in Ireland, the common European brown frog, the smooth newt and the natterjack toad.
From the en.wikipedia.org
An example is the production of tetrodotoxin in the rough-skinned newt and the evolution of tetrodotoxin resistance in its predator, the common garter snake.