Oh yeah, it's totally 350 or so feet? Well, look at this.
And what's this? Well, THAT'S from the official MR wiki. Also, if you're just gonna say "ThEn HoW dId It SwAlLoW a 30 fOoT rUgOpS?" stfu, just MR logic bruh. Also, RRW's size estimate of the MR Spinosaurus was just the technical size, yes, you heard me correctly, T-E-C-H-N-I-C-A-L, he never meant that it actually WAS 350 or so feet, he meant technical. Plus, in the close-ups, it does look like it, but it literally wasn't, it was just 60 feet (of course the rest of what it said about its irl counter-part is just purely outdated), if you wanna debate about it, then fine, but just know that it was technically 350 feet, not actually, in actuality, it was 60 feet.