|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the unranked clade Simplicidentata by Cope (1889), Meng et al. (2005) and Asher et al. (2005).
It was assigned to Rodentia by Flower (1883), Flower and Lydekker (1891) and Lambe (1908); to Glires by Meng et al. (2005); and to Glires by Cope (1889), Gregory (1910) and Asher et al. (2005).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.