|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Rodentia - Muridae
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.
|E. Martín Suárez and P. Mein 1991||Castillomys of medium size. m1 and m2 with a longitudinal spur, which froms a crest in 50% to 90% of the specimens. m2 generally without posterior heel or with a reduced one. In the upper molars t1 develops a lingual longitudinal crest in more than half the M1 and in somewhat less than half the M2. The majoritiy of the M1 have a labial longitudinal crest (t3-t5). In M2 the t3 is generally isolated.|