Kirtlingtonia, Butler & Hooker, 2005

Butler, Percy M. & Hooker, Jerry J., 2005, New teeth of allotherian mammals from the English Bathonian, including the earliest multituberculates, Acta Palaeontologica Polonica 50 (2), pp. 185-207 : 192

Genus Kirtlingtonia nov.

Type species: Kirtlingtonia catenata sp. nov.

Derivation of name: From Kirtlington, Oxfordshire, from which the material was obtained. Feminine.

Diagnosis.—Upper molar with a central basin, flanked buccally by a crest on which stand an anterior and a median pointed cusp, with minor elevations more distally. The basin is shallow, without fluting. Lingually to the basin is a central row consisting of a moderately high mesial cusp followed by a chain of about 6 cusps of diminishing size; the chain curves buccally at its end, where it crosses the basin towards the median buccal cusp. There is an enlarged cusp at the distal end of the tooth (?= cusp B1 of Eleutherodon ). On the mesiolingual side of this is a diminishing series of 3 or more smaller cusps. Lingual to the central row are numerous minor cusps, irregularly arranged. Differs from Eleutherodon in the pointed cusps, the small number of buccal cusps, the absence of fluting in the groove, failure of the central row to unite with cusp B1, and the absence of the lingual groove and cusp BB.

Upper premolar semi−molariform.