For purposes of the following discussion, almost all puns have been omitted and are left as an exercise for the reader. Anything dealing with the lowers has the suffix -id . This gets carried to extremes in some literature, and I will try to avoid it.
Cusps are the elevated points of teeth, and are shown as pink circles.
The addition of -ule to a cusp name means a subsidiary cusp. Thus, the posterior-most cusp of the trigonid is the metacone , and a subsidiary cusp of the metaconid would be the metaconulid . Shearing surfaces are shown with a pattern of short grey lines, while broad crushing surfaces are stippled in grey. All figures are shown in a sort of occlusal view , meaning we are looking down on the business end of the tooth, similar to the last thing a prey animal ever sees. The basic reversed triangles pattern for molars is shown schematically in Figure 1 .