Talk:Godzilla Misconceptions/@comment-24572700-20140421172222/@comment-8683878-20140611050754

In the original Japanese version of Godzilla vs. Mechagodzilla II there is a scene where Captain Sasaki refers to them (in English!) as dorsal fins. It's the scene where Aoki is falling asleep in class: Sasaki explains that the time between the lighting of Godzilla's dorsal fins and the release of his atomic breath is 1.26 seconds.

Of course, he could be wrong in-universe, but no one corrected him.