A crest, the anteroloph, is present behind the labial cuspule.
2.
In front of the hypoconid, an ectostylid ( a smaller cuspule ) is present.
3.
In front of the metaconid, there is a small cuspule, an anteroconid, at the lingual side of the tooth ( the side of the tongue ).
4.
There is a well-developed cingulid at the outer back margin ( distobuccally ), between the hypoconid ( one of the main cusps ) and the hypoconulid ( a smaller cuspule ).
5.
The upper incisors have two cusps and the upper canine has three a large central one, a small but well-developed one at the back, and a small cuspule at the front.
6.
In " D . chimaera ", a low crest, the post-hypoconulid cristid, reaches from the hypoconulid to the back lingual corner of the tooth, where a small cuspule, the distocuspid, is located.
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