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Due to the absence of a large number of incisors, only the pre-molars and molars (cheek teeth) were examined for enamel hypoplasia.
Pengilly (1984) noted that the degree of dental variability in mammals (based on the coefficient of variation of measurements, not anomalies) is lowest in the central cheek teeth. Gingerich and Winkler (1979) considered this variability as a good inverse measure of functional complexity--cheek teeth with complex occlusal surfaces (and functions) should be less variable.
It has the unusual combination of small cheek teeth and a big flat face.
In horses, the fixed jaw movement patterns often result in uneven wear of cheek teeth rows (Deuel and Lawrence 1986).
ARabbits who drool and stop eating are most likely to have some problems with their cheek teeth. Many rabbits have maloccluded jaws, which means that there will be uneven wear on the cheek and front teeth, causing big spurs to form on the sides of the cheek teeth.
No other features in the assemblage (e.g., noticeably different enamel plication patterns of cheek teeth) contradict this identification.
Table I.- The comparative measurements of the cheek teeth of Hipparion sp.
P2 anterostyle is somewhat elongate; maxillary cheek tooth crown height does not exceed 60 mm in early populations but can later reach more than 65 mm; maxillary cheek teeth are complexly ornamented with multiple plications on the distal border of the prefossette and the mesial border of the postfossette; mesial border of the prefossette and distal border of the postfossette are less complex in their plications; bifid to, especially in premolars, trifidplicaballins are present; protocones are oval, somewhat flattened lingually, and rounded buccally; hypoglyphs are broad and moderately deeply incised (Wolf et al., 2013).
Moreover, the face's well-preserved upper jaw has almost all of its cheek teeth still in place, which for the first time makes it possible to infer the type of lower jaw that would have fitted 1470.
Plane or swale defects are characterized as an irregular sloping around the cusp tips of cheek teeth and the incisor edges of anterior teeth.
conversidens was described briefly in Owen (1869) and was based on maxillae, palate, and upper cheek teeth from the Valley of Mexico.