 It would make sense for Noasauridae (the sister taxa to Abelisauridae) to have evolved during the Jurassic, meaning that the early appearance of elaphrosaurines would not preclude a within Noasauridae.In 2016, a redescription of "Elaphrosaurus" by Oliver Rauhut and Matthew Carrano argued against earlier hypotheses that elaphrosaurines were basal ceratosaurs, instead placing them alongside noasaurines within a monophyletic Noasauridae.This study formally defined Elaphrosaurinae as "all noasaurids more closely related to "Elaphrosaurus" than to "Noasaurus", "Abelisaurus", "Ceratosaurus", or "Allosaurus"."