Stylinodon ("tooth with pilar-like fibers")[7] 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.

[8][9][10][11] With a weight between 54.9 kg (121 lb) and 109 kg (240 lb),[8] and length of 1.30 m (4 ft 3 in),[8] 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.