The shasta looks so awesome, but again, we really need some sort of fictional creature vote, because Im not sure what new Dodo-saurus is gonna suit exctinction.
Personally I think the Yi Ling looks a bit too chicken-y, it should look a bit more like a flighted deinonychus or wyvern, or maybe a biped rock drake.
So it’s like a scout / deinonychus / otter / snow owl that also boost mutations? That’s cool and also the “glowing colour mutations” almost sounds like it’s including ark mobile’s eerie creatures into the main game.
So instead of a murder otter, camo-carno or cheetah we got... a chicken, that helps breeders. How creative, not like thats been done for so many other creatures, maewing, procoptodon, dimetrodon, etc.
So its a Tropeognathus - Basilisk submarine? You got my vote.
Also, you should be able to build indoor structures (smithy, fabricator, bed, etc) in its submarine saddle.