Pteradax

Pteradax is a Terrasaurs monster of the Radicals agenda. Figure was released in Series 2: I Chomp NY.

Pteradax swoops from the skies to snatch enemy monsters and send them flying through the city skyline. The flocks that follow him can bring in additional combatants or carry enemies skyward to drop them to their doom.

Proportions:
 * Height:61 Meters
 * Weight:18,000 Tons

Alpha

 * Pteradax's main trick in this form is Summon, allowing him to easily create a Screen, or to easily create a Terrasaurs Unit to supplement either his Defenses or his Offense. Interesting choices include a Brontox (Fortify, along with the benefit of Nesting next turn), a Spikasaur (Hazardous), and an Elite Pteradactix (Red Riled).
 * Pteradax is the only Radicals monster with Flight, so make good use of it to avoid Hazards and Units.

Ultra

 * Blue Abduct my be a bit tricky to use at first, but, when used correctly, can be a tremendous asset. If the opponent has a unit turn coming up, try to place Units on the corner's of the enemy Monster's base. That way, not only do they gain Cover, but they will also be adjacent to any Screens that the opponent may throw up, leaving an opportunity for Pteradax to strike with Abduct to clear a path.
 * Power attack Hit and Run is an excellent Trigger, since it allows a Monster to return to a Screen after nailing the opponent for massive amounts of damage. This can be combo'ed with Follow Through to allow Pteradax to brawl a building with High Occupancy and easily heal a point, or to brawl a Unit and heal a point courtesy of a Green Fury Van's Red Munch. If need be, you can also combo this with a Hyper Down to benefit from Alpha Pteradax's Summon.
 * Pteradax has ton of Health in this form, so don't be afraid to go for a Throw, even if the opponent can retaliate with more damage.

Mega

 * On this form, use Tow to break Screens, step into alignment, and then brawl the Tow'ed Unit to heal a point from Munch. Combo with this even more by nailing the opponent with a Power attack, courtesy of Chain Attack. While this may seem a little confusing at first, it is Mega Pteradax's main trick, so use it liberally.

Other Media
Tier article by Ken Jenkins

Pteradax's design is most likely based on Rodan.