TABLE 1. Dental dimensions (mm) for Microleo attenboroughi QM F41143 and QM F42676. Abbreviations: l = length; w = width; a = alveolar measurement; [ ] = estimate. Measurements are of maximum dimensions.

  P3 M1 M2 M3 P3-M4 m3
Specimen # l w l w l w l w l l w
QM F41143                      
(left) 4.7a 2.0a 3.5a 2.9a 3.3 3.6 2.8 3.0 [16] - -
(right) 4.6 2.7 3.6a 2.8a 3.3 3.6 - - - - -
QM F42676 - - - - - - - - - 3.0 2.5

TABLE 2. Comparative measurements (mm) of P3 length of thylacoleonid species. Abbreviations: a = alveolus measure; ^ = P3/P3-M3; # =P3/P3+M1+M2; ^^ = P3/P3 +M1 (in Thylacoleo carnifex M1 lies anterior to the posterior end of P3 hence individual tooth lengths are summed for cheektooth row length); ** = measurements from Archer and Dawson (1982).

Species Specimen number P3 length P3:M1 P3: cheektooth row length
(P3-M4)
Microleo attenboroughi QM F41143 4.6 1.2 0.29
Priscileo roskellyae QM F23453 8.2 1.4 0.35
Priscileo pitikantensis SAM P37719 11.2a 1.8a 0.36
Wakaleo oldfieldi QM F11852 14.1 1.3 -
Wakaleo vanderleueri CPC 26604 17.4 1.5 0.45^
Wakaleo alcootaensis NTM P1 23.3 1.6 0.49^
Thylacoleo hilli SAM P17621 24.4 - -
Thylacoleo crassidentatus QM F10622** 41.0 2.7 0.70#
Thylacoleo carnifex AR 21609 55.4 3.9 0.78^^