This is Andrewsarchus, a huge carnivore as tall as a horse and weighing close to a ton.
— Allen

Andrewsarchus (name meaning "Andrews' Beast") is a genus of Cetancodont that originated during the Late Eocene epoch in what is now Africa and Asia. Standing as tall as a horse, measuring 6 meters long, and weighing close to a ton, this predatory mammal was more closely related to hoofed animals, such as goats and sheep, despite looking like a kind of dog or wolf. Therefore, it was not related to any canine today.

A pair of Andrewsarchus was encountered by the Team in the episode "Big Blue Killer Whale" and brought back to the park from prehistoric Africa of 36 million years ago.


Era & DiscoveryEdit

Andrewsarchus lived in Mongolia and Africa during the Late Eocene, from 40–35 million years ago. Though Basilosaurus ruled the Eocene seas, Andrewsarchus was the apex predator on land. Roy Chapman Andrews discovered Andrewsarchus in the 1920s in Mongolia and it got named after himself.

Physical AttributesEdit

Andrewsarchus was a large carnivorous mammal. Standing around 8 feet tall (as tall as a horse), measuring 1820 feet (5.56 m) in length, and weighed close to a ton, Andrewsarchus was arguably the second-largest mammalian carnivore to ever walk the Earth, next to Arctotherium.

Despite their appearance, Andrewsarchus was not related to modern scavengers, such as dogs, wolves, or even hyenas. Strangely, they possessed hooves on their feet as opposed to claws. In fact, their nearest modern relatives are hoofed animals like sheep and goats. They were, in a sense, sheep in wolf's clothing. Their huge one–meter–long jaws are designed to crush anything, such as a Sea Turtle.

Behavior & Traits Edit

Andrewsarchus normally hunted for prey inland, where they were more used to picking off carcasses of giant dead herbivores, such as Embolotherium. However, droughts during the Eocene would drive them to search for food among beaches.



  • Andrewsarchus' scientific name is the same as that of Velociraptor. They both share the scientific name "mongoliensis​".
  • The sound effects of Andrewsarchus are a mix of the sound effects of large cats, walrus, bull, and wolves.
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