|Height||12feet, up to 60ft using their size-changing power.|
|Behind the Scenes|
|Universe||Ben 10 Universe|
Vaxasaurians are an extraterrestrial species of saurians from the planet Terradino, a planet similar to Earth. Based purely on the look of the landscape, at first glance Terradino appears to be the perfect candidate for a dream vacation brochure. It is described as a postcard paradise with sandy beaches and thick jungles, the home to a vast number of diverse animal-like alien species, many creatures big and small. It is a very beautiful planet, with all sorts of mountains, canyons, waters, rivers, plants and fauna.
In their normal size Vaxasaurians superficially look like cross between a Human and dinosaur. They have four-fingered hands with ape-like nails on the end of each. Their feet are elephant-like and have three toes. Their chest and abdomen are plated in a muscular fashion. Their skin has a wrinkled and plated pattern consisting of lines. Their neck hunches forward with their bottom jaw pronounced. They naturally have either green eyes with no pupils or light red eyes with cat-like pupils, along with brow-like extensions. There are lines extending from the mouth like wrinkles and their lips are thin and black. Their nostrils are either between or slightly above the eyes. Their teeth are white and almost human-like with the exception of a few fangs. Like dinosaurs, they possess a tail.
Male Vaxasaurians are tan, brown, beige, dark green or greyish with lighter-colored underbellies. The front of the neck and the side of the arms that face the body are also light colored. Certain Vaxasaurian males have naturally occurring weapons on the ends of their tails, resembling a plethora of medieval weaponry including maces, swords, war hammers, and battle axes.
Females have medium red skin and slightly darker underbellies. Their chins are slimmer and they have stripes around their body that are the same color as the skin but darker. They also appear to have feminine breasts that are usually found on female humans, hinting the species to be more mammalian than reptilian.
When Vaxasaurians grow in size, dinosaurian features start to become pronounced, until they look like an anthropomorphic dinosaur with stegosaurid back plates and thagomizers on the tail. Also, on the shoulders, three plates separate and grow along with the plates on the forearms. On the top chest plate, a small triangular extension forms on the bottom while the bottom sides stretch down and curve towards the center, ending at a point. The legs also seem to become slightly longer.
Vaxasaurians are strong enough to survive in space without any special equipment for a few minutes. They are also able to throw an object into near orbit and can lift a To'kustar with ease. They do however have slight trouble lifting their predator. Their thick hide makes them durable against most attacks. They are also quite agile for their size. They are however very slow, unable to fit in tight places and are extremely vulnerable to electricity.
Vaxasaurians' natural predator is a Tyrannopede. These apex predators can easily defeat and devour a Vaxasaurian with their powerful jaws, greater enhanced strength, and the ability to snare their prey with a heavy coated web.
- Vaxasaurians are based on Earth's sauropod dinosaurs because both possess elephant-like limbs, large bodies, and long tails.
- Vaxasaurians can occasionally be seen in clothing. The attire can include caveman-like loincloths, stone-based accessories and/or bones and skulls of other species.
- Like humans, a Vaxasaurian can develop a need for glasses.
- Vaxasaurians can evolve into Evolved Vaxasaurians.