All tetrapods descended from a common ancestor that just happened to have limbs with five digits. And over the eons of evolution following that, natural selection worked with variations on ...

What do phylogenetic trees illustrate ... If you took a progressive view, you might assume that tetrapods lost their rays during the course of evolution. In reality, however, the common ancestor ...

That's the raw material by which evolution happens, that's the fuel. Densignathus looks very different from Hynerpeton, although they both are early tetrapods. One's jaw is very narrow and thin ...

phylogeny, and ecology. NERC BETR award, £800k to Bristol 2 Postdoctoral Researchers in Bristol and colleagues in China (Wuhan, Chengdu) Evolution of feathers and colour in tetrapods Exploring the ...

There are chapters on the taxonomy and phylogeny of the key vertebrate groups followed ... A review of the British Middle Triassic tetrapod assemblages Michael J. Benton, Geoffrey Warrington, Andrew J ...

Because all later land vertebrates, or tetrapods, can be traced back to ... one in South America and one in Australia. It seems that evolution has forgotten them, because these ancient "living ...