title: Rival species recast significance of 'first bird'.
authors.forename: Ewen
authors.initials: E
authors.lastname: Callaway
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001717:Birds / Q000033:anatomy & histology / Q000145:classification; D049628:Body Size; D025061:Dinosaurs / Q000033:anatomy & histology / Q000145:classification; D005580:Fossils / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D011859:Radiography