With about 400 species it is considered a large genus.
If it is considered a distinct genus, the name Ereunetes would apply, first published in 1811.
Some authors consider it a valid genus in itself.
For nearly two hundred years they were considered a separate genus, having been published at that rank in 1810 by Robert Brown.
Rhyacosiredon used to be considered a separate genus within the family Ambystomatidae.
Its subgenus Neoplatymops has sometimes been considered a separate genus.
It was seen as a synonym for Oxyodes, but is now considered a separate genus.
Bowdleria is now considered a former genus once identifying the 2 species of Fernbird.
It was formerly considered a separate genus, but reclassified following a major revision by Frost et al. in 2006.
It was formerly considered a genus, but is now a subgenus of Euclidia.