叉尾鳥屬(學名:Schizooura)是一種生存於白堊紀早期的原始今鳥類。2012年首次發現於遼寧西部建昌縣境內的早白堊世九佛堂組,因其叉形尾羽而得名。分析表明,叉尾鳥比建昌鳥和古喙鳥進步,但又比熱河生物群中其他目前已知的今鳥類原始。模式種為李氏叉尾鳥,種名紀念中國科學院古脊椎動物與古人類研究所的化石修理師李玉同。[1]
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