 Additional material was described in 2004 (including a partial braincase) and 2006; in the latter publication, the authors suggested that its larger contemporary "Kepodactylus" could be the same animal, although there are minor differences.Jensen and Padian classified "Mesadactylus" as a pterodactyloid.In 2007 S. Christopher Bennett claimed that the holotype and the referred material came from different forms and that, while the last was indeed of a pterodactyloid nature, the synsacrum belonged to a member of the Anurognathidae.