Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: Ndị nchọpụta abụọ, Chris Bennett (1996) na David Peters (2000), achọpụtala na pterosaurs bụ protorosaurs ma ọ bụ nwee mmekọrịta chiri anya na ha. Peters ji usoro a na-akpọ DGS mee ihe, nke na-agụnye itinye ihe ndị e ji eme nchọpụta dijitalụ nke ihe omume nhazi foto n'ihe osise nke ihe ndị e gwupụtara n'ala pterosaur. Bennett nwetaghachiri pterosaurs dị ka ndị ikwu nke protorosaurs mgbe o wepụsịrị njirimara nke ụkwụ azụ site na nyocha ya, na mbọ iji nwalee echiche na njirimara ndị a bụ nsonaazụ nke mgbanwe mgbanwe n'etiti pterosaurs na dinosaurs. Otú ọ dị, nyocha nke Dave Hone na Michael Benton (2007) emesịworo enweghị ike iwepụta nsonaazụ a. Hone na Benton chọpụtara na pterosaurs nwere njikọ chiri anya na dinosaurs ọbụnadị na-enweghị ihe odide azụ. Ha katọrọ ọmụmụ ihe ndị gara aga nke David Peters, na-ewelite ajụjụ banyere ma nkwubi okwu ndị e ruru na-enweghị ohere ịnweta ihe akaebe bụ isi, ya bụ, pterosaur fossils, enwere ike iwere otu ịdị arọ dị ka nkwubi okwu dabere kpamkpam na nkọwa mbụ. Hone na Benton kwubiri na, n'agbanyeghi na a choro pterosauromorphs nke mbu iji kọwaa mmekọrịta ha, a na-ahụta pterosaurs kacha mma dị ka archosaurs, na ọkachasị ornithodirans, nyere ihe akaebe ugbu a. N'ime nyocha nke Hone na Benton, pterosaurs bụ otu nwanne Scleromochlus ma ọ bụ daa n'etiti ya na Lagosuchus n'osisi ezinụlọ ornithodiran. Sterling Nesbitt (2011) hụrụ nkwado siri ike maka klade mejupụtara Scleromochlus na pterosaurs. Nnyocha ndị e mere n'oge na-adịbeghị anya banyere ọdịdị ụkwụ azụ nke pterosaur yiri ka ọ na-akwado njikọ ya na Scleromochlus. Dị ka archosaur a, usoro ọmụmụ nke pterosaur nwere akụkụ azụ nke na-egosi mgbanwe maka saltation.  Ajụjụ: Gịnị bụ mmekọrịta dị n'etiti pterosaurs dị ka nyocha nke Hone na Benton si dị?
otu nwanne nke Scleromochlus ma ọ bụ daa n'etiti ya na Lagosuchus na osisi ezinụlọ ornithodiran