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本文记述了辽宁北票义县组一件新的初鸟类(Avialae)化石,这是继中华神州鸟(Shenzhouraptor sinensis Ji et al,2002)之后初鸟类化石的又一发现.它以上下颌无齿而具角质喙、胸骨发达且具龙骨突、前肢显著长于后肢等特征与始祖鸟(Archaeopteryx)不同,以后肢第Ⅰ趾爪已反转而与其它3趾对握等特征与神州鸟相区别,该化石被命名为东方吉祥鸟(新属、新种)(Jixiangornis orientalisgen.et sp.nov.)中国辽西新近发现的中华神州鸟和东方吉祥鸟(新属、新种)目前是世界上最古老最原始真正具有角质喙和飞行能力的原始鸟类.
This article describes a new Avialae fossil from the Beijiaoyi County Formation in Liaoning Province, another discovery of early bird fossils following the Shenzhouraptor sinensis Ji et al. (2002) Tooth with a keratotic beak, sternum with keel sudden, prominent forelimb longer than the hind limbs and other characteristics of the Archeopteryx (Archaeopteryx) is different from the first hind paw claw has been reversed and the other 3 toe grip and other characteristics and Divine Bird phase difference, The fossil is named Jixiangornis orientalisgen.et sp.nov. The newly discovered China Shenzhou and Oriental auspicious birds (new genus and species) in western Liaoning are currently the oldest in the world The pristine, truly primitive bird with horny beaks and flying ability.