>>35624797I get what you mean, but if you look at it's pose as intended the same way Sandshrew and Sandslash are in Red and Green as quite spherical mons, but assume it's an elephant in the Gen 1 kaiju/dinosaur design then it could easily be a scrapped Donphan. Other images ITT make it clear some mons changed design rather than just didn't make it in.
The fanart of it in
>>35610834 make it look like Phanpy