Description
Original diagnosis after Bourdon, Wright, Lucas, Spielmann & Pence, 2011 [13214]: As for genus: Genus characterized by small teeth with a broad neck, smooth triangular cusp and distal heel possessing a cutting edge that may be partially or completely serrate. The dentition displays well-defined monognathic heterodonty with teeth of anterior positions having mesiodistally-compressed cusps. The root is notched, lacks a nutritive groove, bears one or more weak lingual foramina and numerous labial foramina below the crown, which bulges medially over the root. Anterior teeth possess a narrow cusp and high-lobed root. In lateral teeth the cusp is broader and more distally inclined; the lobes are high but more obtusely splayed. Lateral and most anterior positions have a distal heel meeting the cusp either acutely or obtusely. Two tooth forms, gracile and robust, are described here and are currently interpreted as representing the same species; the designated holotype and paratypes are of the gracile variety. These differ, with the teeth of the gracile form having narrower cusps and thinner overall than the robust form.

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