in the northern part of the supercontinent, life is hard mainly due to the extreme cold. but life finds a way, and a few kinds of hyraxes were able to survive.
the only lithohyracoids in these areas are euhyracoglirians, and all other herbivore niches are occupied by lagohyraxians. and predator niches are of course, dominated by hyracocarnivorans.
the top predator of these frozen wastelands are a very large, robust species of hyrailurian called hyantheras. these predators hunt by ambushing on the ground, attacking prey when they least expect it. their form of communication are various very deep roars and chuffs. they can be up to 300 pounds. since they're far too heavy to use trees to jump down on prey, they either leap down from low cliffsides (they are able to do this due to their superb climbing skills inherited from the first allohyracoidean, which was inherited by the first tree hyraxes on the world) or simply get close enough on the ground to strike. like a polar bear, their skin is black. but unlike polar bears, their fur isnt translucent, its just white.
another successful predator of these lands are the polar lycadasis. being successful pack hunting predators of where they originally came from, these highly intelligent hyraxes are bigger in these enviroments, being up to 110 pounds.
the most numerous prey item on these lands are the arctic lepyrax. they also are bigger than their more warm adapted cousins, being up to 50-60 pounds, and essentially look identical to a normal lepyrax, but with shorter ears and white fur.
the only euhyracoglirian of this area is the vyrole. these animals have a niche similar to lemmings, and actually are smaller than any euhyracoglirian. they can weigh up to a pound, and are the new smallest known hyraxes. they feed on the roots that grow in the soil, and are commonly preyed upon by lycadasis and hyragales digging them up.
hyragales are also common in these areas, but with a white color morph that isn't actually a different species.
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Hyracia: the world of hyraxes
Science Fictiona little thought experiment in a world where the only major land vertebrates are hyraxes.