Anomalurus is the largest genus in the rodent family Anomaluridae, with four species. It is the only genus in the subfamily Anomalurinae. Beecroft's Scaly-tailed Squirrel, Anomalurus beecrofti, is sometimes moved to its own genus, Anomalurops, but Dieterlen (2005) and other authorities consider it to be part of Anomalurus.