Eocene rhinoceroses

thumb|Skeletal reconstruction of Hyracodon Hyracodon ('hyrax tooth') is an extinct genus of perissodactyl mammal from the White River Formation.

Subhyracodon (Latin: "below the genus Hyracodon") is an extinct genus of hornless rhinocerotids.

Trigonias (Greek: "triangular" (trigonos), "ias" [denotes possession]) is an extinct genus of rhinocerotid from the late Eocene (Chadronian) some 35 million years ago of North America.

Urtinotherium (meaning "Urtyn beast" in Ancient Greek) is an extinct genus of paracerathere mammals. It was a large animal that was closely related to Paraceratherium, and found in rocks dating from the Late Eocene to Early Oligocene period. The remains were first discovered in the Urtyn Obo region (now Dorbod Banner, Ulanqab) in Inner Mongolia, which the name Urtinotherium is based upon. Other referred specimens are from northern China.

Juxia ('joo-she-a'; from ) is an extinct genus of paraceratheriid, a group of herbivorous mammals that are related to the modern rhinoceros, that lived in Asia during the upper Eocene. The type species is J. sharamurenensis, named by Zhou Mingzhen and in 1964. thumb|left|Skull and neck of a mounted specimen of Juxia sharamurenensis, Paleozoological Museum of China As an early paraceratheriid, Juxia was a relatively small animal, around the size of a horse, compared to its later relatives, with a body mass estimated at or , held by elongated long legs and small skull firmly attached to a rela

thumb|left|Life restoration Cadurcodon is an extinct genus of amynodont that lived during the Late Eocene to the Oligocene period. Fossils have been found throughout Mongolia and China. It may have sported a tapir-like proboscis due to the distinct features found in fossil skulls.

Forstercooperia is an extinct genus of forstercooperiine paraceratheriid rhinocerotoids from the Middle Eocene of Asia.

Ronzotherium is an extinct genus of perissodactyl mammal from the family Rhinocerotidae. The name derives from the hill of 'Ronzon', the French locality near Le Puy-en-Velay at which it was first discovered, and the Greek suffix 'therium' meaning 'beast'. At present 5 species have been identified from several localities in Europe and Asia, spanning the Late Eocene to Upper Oligocene (37 - 23 million years ago).

Pappaceras is an extinct genus of rhinocerotoids from the Early Eocene of Asia belonging to Paraceratheriidae.

Uintaceras is an extinct genus of medium-sized early rhinocerotoids that lived in North America (Wyoming and Utah) during the Middle Eocene, with only the type species U. radinskyi, named in 1997, currently contained within the genus. Traditionally considered the oldest and most primitive species of the Rhinocerotidae, it may instead have been a close relative of the Asian Paraceratheriidae. The dubious species Forstercooperia (Hyrachyus) grandis (Radinsky, 1967; Peterson, 1919) is also possibly the same animal as Uintaceras, although the Asian material of F. grandis was assignable to Forsterc