Topic summary
Drepanosaur
Extracted from the Wikipedia article Drepanosauromorpha.
Drepanosaurs outside Neodiapsida: Avicephala and Simiosauria
A 2004 study by Senter placed drepanosaurs with the coelurosauravids (weigeltisaurids) and Longisquama in a clade called which he called Avicephala. Senter's analysis placed Avicephala within Diapsida but outside Neodiapsida, defined by Senter as the clade containing "all taxa phylogenetically bracketed by Younginiformes and living diapsids."