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From Halopedia, the Halo wiki

"How Riser's people would love to hunt you."
— The Librarian thought of the diminutive florians when she laid eyes on a large brontothere.[1]
Despite their appearance, brontotheres are more closely related to horses than they are to rhinoceroses.

Brontotheres are perissodactyl mammals native to Earth.[1] They superficially resemble rhinoceroses but are distinguished by marked differences in their toes and horns.


"A two-meter high brontothere nuzzles my hand, gentle but forceful, telling me I am out of place, perhaps I should move off somewhere and not bother this peaceable realm."
— The Librarian shares her thoughts with a Catalog unit.[1]

Brontotheres lived in east Africa as late as 97,445 BCE.[1] They were among the creatures that were preserved as part of the Librarian's Conservation Measure.[1][2] At one point during the Librarian's last days on Earth before the firing of the Halo Array, a two-meter high brontothere was one of the animals that approached her, nuzzling her hand.[1] She surmised that they no longer had any fear since all the humans had been removed.[1]

Production notes[edit]

Outside of the Halo universe, brontotheres are believed to have gone extinct around 33.9 million years ago, as opposed to still existing on Earth just around 100,000 years ago. Brontotheres were modeled for Halo Infinite's announcement trailer at E3 2018.[3] During the trailer's production, they were internally referred to as "space rhinos" by members of 343 Industries.[4]


List of appearances[edit]