I just wanted to point out how ShinGoji's 'turkeyzilla' form bears the most resemblance to a certain advanced abelisaurid known as Majungasaurus crenatissimus (albeit a superficially mutated one). Also worth mentioning is the fact the genus Majungasaurus was created in 1955, approximately one year after ShodaiGoji's cinematic premiere... coincidence?
I mean, just look at the family resemblance:
Under close, even scrutinous inspection, SG's evolutionary (or would it be mutationary?) characteristics all but confirms as to what type of dinosaur SG (or any 'dinosaurian' Godzilla in general) could 'realistically' be, rather than the pretty lazy 'chimerazilla' of which I'm sure you all know what I'm referring to.