Tetrapods evolved from a group of animals known as the Tetrapodomorpha which, in turn, evolved from ancient sarcopterygian fish around 390 million years ago in the middle Devonian period; their forms were transitional between lobe-finned fishes and the four-limbed tetrapods.

Are tetrapods more evolved?

Tetrapods form a clade. ... Tetrapods are more evolved than non-tetrapods. Tetrapods are more closely related to each other than to non-tetrapods.

When did the tetrapods evolve?

The evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe-finned fishes.