- Order: Saurischia
- Suborder: Wyvern Feet
- Family: Rex
- Species: Tigrex
Zenith Tigrex is a powerful Tigrex individual that has heavily developed claws to capture prey.
Tigrex preys heavily on large herbivorous animals such as Popo and Aptonoth. Can most likely bring down lesser wyvern species. Capable of thinning out large herds of animals as stressed by the village chief of Pokke village. In frozen environments it is rivaled by Abiorugu,the rare Rajang, the rare Doragyurosu, Khezu , Kushala Daora, Barioth, Brachydios, Glacial Agnaktor, and Zamtrios. But they all could deal heavy wounds on each other. Tigrex is among the fiercest wyverns sighted in the deserts, only rivaled in speed and strength by the herbivorous but highly territorial Diablos, its one-horned relative, the Monoblos, predatory Elder Dragons and Hyujikiki of the Old World along with the Sand Barioth, Nibelsnarf, and its relative Brute Tigrex of the New World. However, they would all prefer to stay out of each others way. Tigrex is equally capable of killing large herbivores such as Popo or lesser predators like Genprey or Jaggi, but prefers the former, as its higher body fat content fuels the Tigrex's high metabolism.
Zenith Tigrex have many of the same adaptions as Tigrex, however, there is a few differences between them. Overtime, Zenith Tigrex has heavily developed its front limbs. These limbs have developed more muscle mass, along with spiky protrusions. These spiky protrusions can easily cut up struggling prey, causing said creature to bleed to death. A Zenith Tigrex's claws can even plow through the earth and, much like Silverwind Nargacuga, send gales of cutting wind. Its front limbs aren't the only thing that has further developed on this Tigrex. Its vocal sac and shell has also heavily developed. Due to a strong tissue covering the vocal sac, Zenith Tigrex is able to produce more powerful roars that can easily send shockwaves towards foes. After many years, Zenith Tigrex's scales have become stronger. Now its body can't easily be scarred by threats.
Zenith Tigrex is a savage, bloodthirsty monster. Once it smells the blood of prey, it'll enter into a Feeding Frenzy and chase down that particular prey item only until it is dead.