Eoenantiornis is a genus of enantiornithean birds which lived during the early Cretaceous period (124.6 Ma ago). It is known from a single fossil specimen found in the Yixian Formation in Liaoning province, China.
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始反鳥（學名Eoenantiornis）是一類真反鳥類，是反鳥亞綱內較為先進的成員中最古老的。它們生存於約1億2500萬年前的白堊紀早期。它們只有一個化石，是在中國遼寧義縣組發現。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).