Godzilla monsters can be surprisingly varied. They come from every notable location, from the bottom of the ocean to the far reaches of space. Only a few of them have stood the test of time. Ghidorah and Mothra, for example, live on in consistent recreations and mountains of related media. Other giant monsters disappear almost immediately. That's the tragic fate of the Dinosaur Monster, Titanosaurus. Though he wasn't around long, his design is interesting enough to stick in the memory.