Specimens have been discovered in modern-day Algeria, Tunisia, Egypt and Libya.

Titanohyrax species are still poorly known due to their rarity in the fossil record.

[2] The genus was first described by in 1922 for the species T. ultimus from the early Oligocene of the Jebel Qatrani Formation, Fayum Depression, Egypt.

[3] The author described it as an “extremely gigantic species, being the largest of all the hyracoids hitherto known” – estimates of body mass range from 600 kg (1,300 lb) to 1,300 kg (2,900 lb).

[4] T. tantulus is the smallest Titanohyrax species known, with a body mass of around 23 kg (51 lb).