CAJ | 학술논문

尽管于20世纪20年代在亚洲地表层首次发现长有羽毛的恐龙和著名的"龙骨突位点",关于鸟类起源的争论仍没有休止.来自化石的证据表明,鸟类在进化分支上应归于兽脚类的特殊分支.本文主要阐明完好无损的化石揭示的鸟和非鸟类恐龙的亲密关系和鸟类羽毛及鸟类出现以前的羽毛的起源证据,分析体型缩小对飞行进化的重要意义及从新的角度论述鸟类如何飞上了天[动物学报 50(6):991-1001,2004].
진관우20세기20년대재아주지표층수차발현장유우모적공룡화저명적"용골돌위점",관우조류기원적쟁론잉몰유휴지.래자화석적증거표명,조류재진화분지상응귀우수각류적특수분지.본문주요천명완호무손적화석게시적조화비조류공룡적친밀관계화조류우모급조류출현이전적우모적기원증거,분석체형축소대비행진화적중요의의급종신적각도논술조류여하비상료천[동물학보 50(6):991-1001,2004].
The "great debate" over bird origins may never have transpired had the now-famous furcula-bearing, feathered dinosaurs from Asia surfaced when the beds in which they were interred were first discovered in the 1920s. Compelling fossil evidence is now to hand that places birds as a specialized clade within theropod dinosaurs. Major insights include a more seamless fossil record linking birds and non-avian dinosaurs, clear evidence of an early pre-avian origin for feathers and other features previously known only among birds, together with an underscoring of the importance of miniaturization for the evolution of powered flight and a broadening of the functional scenarios for how powered bird flight was first achieved[Acta Zoologica Sinica 50(6):991-1001,2004].