鸟类化石是各种鸟类化石的统称。中国鸟类化石的发现已有几十年的历史。近年来在辽宁西部，中华龙鸟化石的发现，表明中华龙鸟为小型兽脚类恐龙，为鸟类真正始祖，有力地支持了鸟类系由小型兽脚类恐龙演化而来的学说。
河北省丰宁县北部侏罗系义县组底部首次发现鸟类化石。
Bird fossils were for the first time discovered in the bottom of the Jurassic Yixian Formation in the north of Fengning county, Hebei.
中国科学家今年先后在辽西北票地区发现十枚始祖鸟类化石。
Chinese scientists have successively discovered ten archaeopteryx-type fossils in the Beipiao region of Liaoxi this year.
本文记述了山东临朐山旺组(中新世中期)出产的两件鸟类化石。
Two fossil birds collected from Shanwang Formation, Middle Miocene (about fifteen million years ago), of Linqu, Shandong are here described.
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