Plesiaceratherium

Plesiaceratherium is an extinct genus of rhinocerotids.^[2] It includes two species: P. gracile from China and P. mirallesi from France.

Plesiaceratherium
Plesiaceratherium skull, Paläontologische Museum München
P. gracile skeletal reconstruction.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Perissodactyla
Family:	Rhinocerotidae
Subfamily:	†Aceratheriinae
Genus:	†Plesiaceratherium Young, 1937[1]
Species
Plesiaceratherium gracile Plesiaceratherium mirallesi Plesiaceratherium tongxinense

Plesiaceratherium gracile was a mid-sized, hornless species of rhinoceros. Estimated size is 2.8–3.1 m (9.2–10.2 ft) in head-body length, 1.4–1.6 m (4.6–5.2 ft) in shoulder height, and 1,198 kg (2,641 lb) in weight. Males had significantly larger incisors than females and had more robust heads and bodies (although females may have had longer heads and limbs), and combined with their large body size it suggests that this species was polygynous and had a solitary lifestyle.^[3]

Sexual Dimorphism

Skulls: female (A), male (B).

Incisors: male (A), female (B).

• 
  Plesiaceratherium mirallesi Skull (Béon, Montréal-du-Gers, France) MHNT
• 
  Plesiaceratherium mirallesi Mandibule (Béon, Montréal-du-Gers, France) MHNT

Palaeoecology

P. mirallesi was a browser whose diet was primarily composed of leaves.^[4]