More archaeology animals and plants: make the sniffer less lonely!

The archaeology update adds a new layer of depth (pun intended) to minecraft. The sniffer is the only mob that can be uncovered via archaeology. Imagine if you could help restore a whole extinct biosphere of strange yet adorable creatures! Other six legged mammalian/reptilians would be a unique addition to the game. More prehistoric plants could be added too for the new animals to munch on...