Kielantherium Dashzeveg, 1975

Lopatin, Alexey & Averianov, Alexander, 2007, Kielantherium, a basal tribosphenic mammal from the Early Cretaceous of Mongolia, with new data on the aegialodontian dentition, Acta Palaeontologica Polonica 52 (3), pp. 441-446 : 441-442

Genus Kielantherium Dashzeveg, 1975

Type species: Kielantherium gobiense Dashzeveg, 1975 . Höövör , Mongolia, Aptian–Albian, Early Cretaceous .

Included species: Type species only.

Revised diagnosis.—Differs from Aegialodon Kermack, Lees and Mussett, 1965 in having cusp−like mesiolabial cingulid cuspule f, rather than prominent ridge−like precingulid. Differs from Tribactonodon Sigogneau−Russell, Hooker, and Ensom, 2001 in lacking entoconid and lingual cingulid, and having much smaller mesial cingulid cuspules e and f. Differs from Hypomylos Sigogneau−Russell, 1992 in having larger and higher paraconid, well developed mesial cingulid cuspules, relatively shorter talonid with a more horizontal, and less sloping lingually talonid basin bordered lingually by a more prominent entocristid. Differs from crown−group Theria in having a distinctly smaller protocone, and smaller and shorter talonid basin with only two cusps. Differs from Peramus Owen, 1971 by having protocone and four molars. Additionally differs from Eutheria in having four molars and from Metatheria in having at least four premolars.