Renesto and Binelli (2006) found that when pterosaur "Eudimorphodon" was added to Senter's (2004) original matrix it was found to be a member of Senter's Avicephala. The authors also conducted a second analysis, this time based on a character set and matrix updated by scoring additional characters previously reported as unknown and by adding a few relevant characters. This analysis recovered drepanosaurids as the sister taxon of "Eudimorphodon"; the clade containing pterosaurs and drepanosaurids was recovered as the sister taxon of Archosauriformes. "Longisquama" and "Coelurosauravus" were not found to be closely related to drepanosaurids, but instead were recovered as non-neodiapsid diapsid as in Senter's (2004) analysis. However, according to Renesto and Binelli it is feasible that this might be a result of poor knowledge of "Longisquama" rather than a reflection of its true phylogenetic position. The authors did note that there are similarities in the structure of forelimb and shoulder region of "Longisquama" and all or some drepanosaurids (e.g. both "Longisquama" and "Vallesaurus" have the fourth digit of manus as long as humerus); they stressed that they could not rule out that at least some of the similarities are convergent due to similar mode of life, and that they did not examine "Longisquama" firsthand, but stated that further studies of drepanosaurids should take the hypothesis that "Longisquama" might be a drepanosaurid into consideration.