The Bestiary is now online with the PRD.
Pegasus doesn't seem to have companion stats, but there are plenty of new 'unusual' ones.
Most of the Dinosaurs have Companion Stats, for example.
ogres would certainly be unusual
Pegasus appears in the options for Monstrous Leadership Cohorts,
so that would seem the way to go if you want a My Little Pony (with wings).
There are also a number of Paladin mounts presented in the Book of Divine Magic from 4 Winds Fantasy Gaming.
AFAIK, you no longer need to use your deities' favored weapon to use Divine Bond.
An very interesting question.
A paladin riding on a pegasus would be just cool.
Or on a golden dragon on higher levels.
Unfortunately, I don't have an answer to you question, if and how a paladin's mount and a "ridable" monster cohort combine.
I'd allow it in a home campaign, as a feat with the prerequisite of Leadership and Divine Bond(Mount) something like...
DIVINE COHORT(Mount)
Prereq.: Leadership, Divine Bond(Mount), BAB +9
Benefit: Your Leadership cohort becomes your Divine Bonded Mount and uses the Druid table accordingly. Your cohort does not gain any HD if it would exceed the limits established under the Leadership rules. (It's HD must be 2 less than character levels you have.)
As long as you're not talking about a 'Pathfinder Society' game, it's probably just a matter of asking your DM if he could hook you up some.
I don't know of any official rules for the situation you present, sorry.
Thinking about it I would make the addition that you have to subtract the initial cohort level from your class level when determining the benefits for your mount from the druid animal companion table.
For example, if a 9th-level paladin took a pegasus as cohort (cohort level 6), he adds bonuses to his mount as a 3rd-level paladin would to his standard mount (table 3-8 in the core rulebook, adding HD/Skills/Feats/etc. to the pegasus as written in the bestiary).
Furthermore, the cohort would not gain XP and class levels, but would improve by the animal companion table whenever the paladin's class level increased.
That way it would be balanced and simple. That's a houserule of course, I don't think the core rules cover this situation.
Furthermore, the cohort would not gain XP and class levels, but would improve by the animal companion table whenever the paladin's class level increased.
Thanks Zen! I was trying to say that in my feat attempt above, but the words just weren't coming out correctly, so I glossed over it like any good player would, lol.
Also the reason I choose +9 BAB was because you get a feat choice on that level AND good luck finding anything worthwhile(in terms of this request) under 6-7HD.
I was restricting my comments to the RAW, and wasn't recommending anything.
A Pegasus Companion/Mount certainly makes sense, but the rules don't support it except thru the Leadership Feat. I believe there WAS comments from James/other Paizoans suggesting this area may be expanded in the future, perhaps in the Adv. Player's Guide, to allow for more Companion Types, perhaps thru an enabling "Supernatural Companion" Feat. Having a way to get a Pegasus Companion WOULD be really cool, and you shouldn't have to use Leadership to simulate it. In the mean time, you would have to make up your own "Companion Stats" for a Pegasus, though.
The Pathfinder Bonus Bestiary has rules for using a dragonne as a paladin's mount. You still have to use the Leadership feat and take it as a cohort, but it gets all the benefits of a special mount.
The Pathfinder Bonus Bestiary has rules for using a dragonne as a paladin's mount. You still have to use the Leadership feat and take it as a cohort, but it gets all the benefits of a special mount.
Curiously, it doesn't explicitly state the cohort level of a dragonne.
However, it makes the additional requirement that the character has an effective druid level of 10. A paladin had to be at least level 10 and have a high enough leadership score to take the dragonne as a mount.
Taking the monster cohorts from the Bestiary as an example, a dragonne should have a cohort level around 14?