While Protolophidae has been nested within Sclerosomatidae by some workers, it has been traditionally recognized as a separate family (Giribet et al., 2010); although a recent treatment (Kury in Zhang, 2013) does not recognize the family Protolophidae, others do (Hedin et al., 2012; Kury website 'Classification of Opiliones' (2014)).[2][5]