Board Thread:Monster Discussions/@comment-26083816-20150207025822/@comment-24572700-20150214201443

Gorosaurus' name could also be derived from Gorgosaurus, as well; they both have similar spellings in both English and Japanese.

But I've included both the "thunder" derivation and the Gorgosaurus derivation in the article, since it seems nobody can pinpoint the name's origin.

And Lookatme, "fifth" is daigono, so it's unlikely that's the derivation of the name.