Pteranodon

Pteranadon were ranked among the behemoths. They were large dinosaurs encountered in the wild and even occasionally trained for use as flying mounts, much like dragons albeit a lot less intelligent mounts.

Description
A pteranadon was a behemoth with sharp talons and leathery skin. One of the few flying dinosaur species, this monster was able to fly quite aptly due to its 30 ft (9.1 m) leathery wings. Combined with a beak, the pteranadon held the middle ground between a reptile and a bird, although its beak was beset with razor-sharp teeth.

Combat
When attacking in combat, pteranadons used the same technique as when they swooped down on water to catch the fish they fed on. Diving steeply, they liked to swoop down on their opponents both in aerial combat as when attacking opponents on the ground. If the victim of the pteranadon was too large, the animal would spear its enemy with its 4 ft (1.2 m) long beak.

Training
These powerful beasts could be used as a flying mount in aerial combat. To train one was hard work taking a skilled rider six weeks of training. The effort paid off with their ability to dive onto unsuspecting targets which made them and their riders a formidable opponent. Being strong creatures, they could also be employed to transport cargo since they could drag up to 4,500 lb (2.0 tons).

Ecology
The jungles of Chult formed the habitat for most behemoths, including the pteranadon.

Discrepancy
The pteranadon first appeared in the Monster Manual 1st edition, but in the Monstrous Compendium Forgotten Realms Appendix (MC3), is was called a pteranodon. Later, it changed back into the pteranadon in the Serpent Kingdoms sourcebook.