Stylinodon

Stylinodon
Temporal range: early to middle Eocene
life restoration of Stylinodon mirus
skull of Stylinodon mirus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Taeniodonta
Family: Stylinodontidae
Subfamily: Stylinodontinae
Tribe: Stylinodontini
Marsh, 1875
Genus: Stylinodon
Marsh, 1874
Type species
Stylinodon mirus
Marsh, 1874
Synonyms
synonyms of species:
  • S. mirus:
    • Calamodon cylindrifer (Cope, 1881)
    • Stylinodon cylindrifer (Wortman, 1896)
    • Stylinodon inexplicatus (Schoch & Lucas, 1981)

Stylinodon ("tooth with pilar-like fibers") is an extinct genus of taeniodonts from extinct tribe Stylinodontini within subfamily Stylinodontinae and family Stylinodontidae, that lived in North America from early to middle Eocene.

With a weight between 54.9 kg (121 lb) and 109 kg (240 lb), and length of 1.30 m (4 ft 3 in), it had similar size to a pig. The skull suggests it had a blunt face, and a very short snout. Its canines had developed into huge, incisor-like root-less teeth. Stylinodon's molars were covered in enamel and continued growing throughout its life. Most likely, it fed on rough roots and tubers.