Arlkinsor

Overview
In the Domeri Rift Valley of the Iridaceous Period roamed Arlkinsor, a genus of ankylosaurid dinosaur. This genus is most known for its armored plates and spikes for which it gets its name, meaning "Iron Lizard" in Zashit. The most similar relatives are Polacanthus and Ankylosaurus.

Biology
While there are several species throughout Centaris, Hiarlliia, Westmarch, and Aurlunor, Arlkinsor (Arlkinsoru plural) share most traits in common. These include:

Beyond this, Arlkinsor kojendij (Rock Tailed Iron Liard) has a larger and blunter club along with head plates going down the cheeks like a galea helmet. Arlkinsor setbeuko (Horned Iron Lizard) has the parallel rows of spikes extending on the neck and back of its head. The other species have minor variations as well.
 * Squat Quadruped figure.
 * Ornithischian (Birdlike) legs.
 * 3 Large bumpy plates covering the entire back torso, acting like armor.
 * A long tail ending in a human head-sized bumpy club (Similar in shape to a tack hammer).
 * Plates throughout the top of neck and head.
 * Small and medium spikes in a row on the sides of the body not protected by plating, going along the tail as well.
 * 2 Large spikes on the shoulders.
 * Beaked mouth.

Ecology
As evidenced by the beak of the mouth, Arlkinsor was an herbivore, eating the diverse shrubbery and underbrush of the Iridaceous. It lived alongside Triceratops, Paracryptosaurus, and Manothronax. Although the latter is believed to be a predator of Arlkinsor, the bulky yuangiren species holotype from the Ostron Formation is believed to have the ability to withstand 435,000psi (albeit with liberal estimates), making it a quite difficult prey to kill. At the end of the Iridaceous period, the Iris Meteor Impact instantly wiped the entire genus out, along with 3/4 of all life on the planet.