Spots:澎湖鱷魚化石 可能改寫歷史20060411


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澎湖鱷魚化石 可能改寫歷史

推估距今約1400萬年 暫命名為「潘氏澎湖鱷」

  澎湖縣民潘明國上個月在西嶼鄉海邊挖出古鱷魚化石,澎湖縣文化局昨天暫命名為「潘氏澎湖鱷」,以表彰潘明國的文化貢獻;另地質學者勘查化石出土地後,推估這具鱷魚化石距今約1400萬年,是中新世初期生物,可能改寫亞洲古代生物史與地質史。

  古鱷魚化石出土後,國立自然科學博物館地質學組研究員程延年跨海鑑定,研判是800萬到1400萬年前「中新世」時期的馬來鱷古化石,由於這是台澎第一次在地層裡發現鱷魚化石,不同於以往在澎湖海溝撈出的鱷魚化石,有助於研究大陸與澎湖陸節相連時的動物遷徙。

  學者與澎湖縣文化局人員到鱷魚化石出土現場會勘,發現出土地平時被海水淹沒,海水退潮時才會露出,台大地質學教授魏國彥與程延年等學者從地質層位進一步研判,認為化石年代應是「中新世」時期初期的產物,年代比之前推估的800多萬年前還要早,這項發現令學者相當振奮。

  澎湖縣文化局長曾慧香說,出土的古鱷魚化石在固化處理後,已經裝箱運往科博館重建,不過澎湖目前缺乏化石重建經費,將向中央爭取;化石出土地尚未公告為遺址保存,文化局已協調警方,每兩小時巡邏發現地,防止遺址遭到破壞。


資料來源:聯合報記者肇瑩如/澎湖報導 2006/04/11