 FMNH PM 59520 is 9 @.@ 8 mm high . It is similar in many respects to UA 8653 , but is less curved and its occlusal surface contains a large infundibulum ( funnel @-@ shaped cavity ) , filled with cementum and surrounded by enamel that penetrates deeply into the tooth . There is also either a second infundibulum or a cementum @-@ filled furrow . The differences in degree of curvature and occlusal morphology suggest that this tooth represents a different tooth position than UA 8653 . Krause and colleagues tentatively placed this tooth in Lavanify in view of the considerable variation among other gondwanathere teeth of a single species and in the absence of evidence to the contrary . 
