Thanks to an unusually mounted Tyrannosaurus I was able to delve into this important issue in palaeontology. While it was famously noted in a paper that a Tyrannosaurus wouldn’t need to eat too many lawyers to keep its metabolism ticking over, the question remains, quite how would, or even could it, consume a human all but whole.
Here you can see that my head and shoulders (my widest point, and I’m a bit above-average sized for a human male) fit through the space between the two scapulae, gastralia and dorsals. It’s a bit of a tight fit, but I can make it. This might be a struggle for rexy, but is probably not impossible. While I have no photo, I also checked to see if I could get my shoulders through the back of the jaws and again it’s possible, though it’s an even more narrow fit this time.
So there you have it. It does indeed seem that a Tyrannosaurus really could swallow a whole human in one go, though anyone much bigger than me would probably be a morsel too big. While clearly frivolous, this does show just how big some chunks of flesh and bone could potentially be consumed by an animal this size, and even a decent sized hadrosaur could probably be got down in just a dozen or so bites over a few meals.