So I found this, searching through Google to find any obscurities.
The Ankylosaurus, Kentrosaurus, Spinosaurus, Mammoth, Allosaurus, Velociraptor and Styracosaurus all seem fairly unchanged. Maybe a tiny bit off but still recognisable. The Campotsaurus has bright spots on their back which is actually sort of apparent on their in-game plaque but with the sprites themselves it looks as if the spots were faded out to not be as intrusive. The Herrarsaurus was more of a blue colour than the original white they settled on, with a normal coloured mouth instead of the cyan one.
The Tyrannosaurus has a more marbled texture on it's back, and an aqua coloured face. I realise this could be the young render but even then this one has very dark markings with a lime outline to them, as opposed to the very dull, muted overall green graphic we got with the final version. Then there's the Caudipteryx peeking in near the Spinosaurus, which looks normal, but then again looking at the in-game plaque reveals it has a tiny tuft of blue feathers on it's head and has a more apparent sunken ring around their eyes as opposed to this one with the green hawk and very sharp features.
Of course, the biggest elephant in the room is what the heck is that green sauropod? I'm assuming this is what the Apatosaurus was envisioned to be but instead we got the brown version which is surprisingly less accurate than the one depicted here. I would have prefered this one, honestly. It's pretty cute.