Save DC types?

[Schade]

Last night a Summoner 'summoned; a Ankylosaurus, and it hit another creature which had to make a DC 23 save or be 'stunned'

The stat block does not list the type of save - I assumed it to be a fort save, but I was wondering if there is somewhere in the rules where the type of save for certain conditions is specified?

Some players argued it should be a reflex save (because they suspected it would have failed the reflex save....). I would like to confirm to my players with reference to a section of the rules that this should have been a Fort save.

Thanks!

[Nefreet]

It's a Fortitude save, although I can't find it right now under the Universal Monster Rules in the Bestiary.

[Zhayne]

The pfsrd site specifies that it is a Fortitude save.

[Nefreet]

Just saw that, too.

But the PRD and ArchivesofNethys do not list the type.

[Schade]

I cant find it in pfsrd? I am looking in the conditions section

[Are]

It wouldn't be listed in the conditions section (as most conditions can be the result of any number of different abilities). It should have been listed in the ankylosaurus write-up, but for whatever reason it was missed. Likely the d20pfsrd people have written it up as a Fortitude save due to a developer forum post or other similar clarification.

[Nefreet]

I would think it'd be in the Universal Monster Rules, but apparently the Ankylosaurus is the only critter with such an attack.