Subfamily HYAINAILOURINAE Pilgrim, 1932

HYAINAILOURINAE gen. et sp. indet.

MATERIAL EXAMINED. — KNM-FT 3359, left upper canine .

DESCRIPTION

This specimen is of gigantic size (lingual root to apex length c. 171 mm). It is nearly complete, except for some loss of enamel of the crown. The buccal margin is strongly curved, whereas the lingual margin is nearly straight.

DISCUSSION

The size of this specimen excludes identification to all but the very largest hyaenodonts, such as the hyainailourines Hyainailouros or Megistotherium.