Reptilia polls: most fascinating prehistoric mammal

[Reptilia]

Choose up your favourite. Of course this is a personal selection, if you'd like to choose another one that's not listed here feel free to comment and motivate your choice.

[ZoPteryx]

Of these, probably Uintatherium, but the basal whales Ambulocetus and Kutchicetus are pretty cool too.

[Bowhead Whale]

That's it? No prehistoric whale!!???

Pakicetus, then. Ancestor of whales.

[stegosauria]

Thylacosmilus would be a good candidate to the list for adding more marsupials.

[Shonisaurus]

I have only been able to choose as all of them, but apart from the uintatherium, I like the paraceratherium, andrewsarchus or megacerops. They are all fascinating species.