白垩小鸟（学名：Cretaaviculus）是种已灭绝的鸟翼类恐龙，生存于晚白垩纪的哈萨克斯坦博斯托贝组，模式种为萨雷苏白垩小鸟（学名：Cretaaviculus sarysuensis），正模标本是一个羽毛化石。[1]
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