Lemur of mouse lemurs, the gray mouse lemur ("M. murinus"), golden-brown mouse lemur ("M. ravelobensis"), and Goodman's mouse lemur ("M. lehilahytsara") were considered the same species until recently, when genetic tests identified them as cryptic species. The lemur dentition is heterodont (having multiple tooth morphologies) and derives from an ancestral primate permanent dentition of . Indriids, sportive lemurs, the aye-aye, and the extinct sloth lemurs, monkey lemurs, and koala lemurs have reduced dentitions, having lost incisors, canines, or premolars. The ancestral deciduous dentition is , but young indriids, aye-ayes, koala lemurs, sloth lemurs, and probably monkey lemurs have fewer deciduous teeth.
Moyer's mixed dentition analysis mouth, and does not require any radiographic projections. Limitations of this analysis are that this is a probability analysis, does not account for tipping of incisors lingual or buccal and that maxillary tooth sizes are predicted by the mandibular tooth sizes. Other limitations of this analysis is that Moyer's never clarified which population this analysis was done on initially. Therefore, this analysis cannot be truly applied to different populations. This was confirmed by a systematic review which was performed in 2004. Moyer's mixed dentition analysis Moyer's mixed dentition analysis was created in 1971 by Robert Moyers . This an analysis