The material below is Open Game Content from a 3PP Source

Dragonne

This creature has the features of a lion but the wings and scales of a dragon. Its wild mane is brass in color, matching the scales that run down its flank.

Dragonne CR 7 (3,200 xp)
N Large magical beast
Init +6; Senses darkvision 60 ft., low-light vision, scent; Perception +12
Defense
AC 19, touch 11, flat-footed 17; (+2 Dex, +8 natural, –1 size)
hp 76 (9d10+27)
Fort +9, Ref +8, Will +4
Offense
Spd 40 ft., fly 30 ft. (poor)
Melee bite +12 (2d6+4), 2 claws +12 (2d4+4)
Space 10 ft.; Reach 5 ft.
Special Attacks pounce, roar
Statistics
Abl Str 19, Dex 15, Con 17, Int 6, Wis 12, Cha 12
Base Atk +9; CMB +14; CMD 26
Feats Blind-Fight, Combat Reflexes, Flyby Attack, Improved Initiative, Power Attack
Skills Fly +4, Perception +12; +4 racial bonus on Perception
Languages Draconic
Ecology
Environment temperate deserts
Organization solitary, pair, or pride (5–10)
Treasure Value 2,600 gp
Special Abilities
Roar (Su) A dragonne can unleash a devastating roar every 1d4 rounds as a standard action. All creatures except dragonnes within 120 feet must succeed on a DC 17 Fortitude save or become fatigued. Those within 30 feet who fail their saves are also deafened for 2d4 rounds. This is a sonic effect. The save DC is Constitution-based.

Possessing the fierce instincts of a lion and the cunning of a dragon, the dragonne is a skilled predator. Although many rightly fear these ferocious hunters, few dragonnes are blatantly evil, most simply proving highly territorial and ignoring those who do not approach their lairs or hunting grounds. Those that draw too close are typically met by the resident dragonne’s fearsome roar. Should this not serve as warning enough, a dragonne’s attacks turn more lethal. Those who attempt to settle in a dragonne’s area find themselves harassed constantly until they decide to leave or the dragonne is slain.

In combat, a dragonne prefers to attack foes one at a time, using its ability to fly to get into an advantageous position. These intimidating predators spend the majority of their time on the ground, even in combat, since their wings prove somewhat ungainly.

Dragonnes as Mounts

A character with the Leadership feat can take a dragonne as a mount using the animal companion rules. Such characters must have an effective druid level of 10th. A character with a dragonne mount counts as 4 levels lower when determining the abilities and statistics of the dragonne (meaning that the character’s effective druid level is 6th for determining abilities when the dragonne is first acquired). Taking a dragonne in this way counts as the character’s cohort.

Dragonne Companions

Dragonne animal companions progress as follows:

Starting Statistics: Size Large; Speed 40 ft., fly 30 ft. (poor); AC +7 natural; Attack bite (2d6), 2 claws (2d4); Ability Scores Str 19, Dex 15, Con 17, Int 6, Wis 12, Cha 12; Special Attacks pounce; Special Qualities darkvision 60 ft., low-light vision, scent.

• 10th-Level Advancement: Ability Scores Str +2, Con +2; Special Attacks roar.