 He postulated that as a result of this "ornithization", one or several lineages of theropods that happened to acquire the proper combination of such traits went on to evolve into actual birds.Since the identification of a number of feathered dinosaurs beginning in the late 1990s, Barsbold's ideas are more fully appreciated.When he initially published his conclusions - a list of generally rather obscure anatomical features - in 1983, there was little exchange between the Mongolian scientific community and that of Western countries.