A strange beast called Chalicotherium.
— Allen, about Chalicotherium

Chalicotherium (name meaning "Pebble Beast") is a genus of odd-toed ungulates that originated during the Late Oligocene epoch in what is now Asia. Around 3 meters tall, these large prehistoric mammals are distantly related to modern horses, tapirs, and rhinos and were also a branch of their own. These were the typical species that is most well understood.

In the episode "The Big, the Small, the Bad, & the Ugly", a small group of Chalicotherium were brought back to the park from Mongolia 25 million years ago. They reside in a desert-like enclosure.


Era & DiscoveryEdit

Chalicotherium lived during the Late Oligocene period over 25 million years ago alongside Paraceratherium, Entelodon, Cynodictis, and Hyaenodon. Chalicotherium lived up around 5 million years ago at the beginning of the Pleistocene and were first discovered in 1873.

Physical AttributesEdit

On average, the males measured 10 feet (3 m) in height whereas the females measured 8.6 feet (2.6 m) tall, and both weighed over 700 kilograms. Chalicotherium were built like modern apes, with powerful forelimbs that were much longer than their hind legs and ended in hook-like claws that were very effective defensive weapons, but they more often used to pull down branches to get at the softest leaves.

Behavior & TraitsEdit

Chalicotherium is a peaceful herbivore. Much like a gorilla, Chalicotherium walked on their knuckles to protect their long claws. These powerful limbs were very effective defensive weapons, but more often these herbivores used them to hook down branches to get at the softest leaves. Though Chalicotherium walked like gorillas and ate like pandas, their closest modern relatives were actually horses, even though they are still distant relatives.

However, the were prey animals for the carnivorous animals of their time and region, such as Hyaenodon and the Entelodon.



  • The sound effects of the Chalicotherium are that of elk, gorilla, horse, moose, and panda sound effects.
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