新华社杭州９月１０日电（记者　冯源）在距今２亿３千万年前的三叠纪时期，如今的云贵高原还是一片汪洋大海，在海中的岛屿上生活着一种食肉的爬行动物。经过中国科学家一年来的研究，它逐渐向世人现出真容，并得名“富源滇东鳄”（Diandongosuchus　fuyuanensis）。不过，它虽然以“鳄”命名，但只是现代鳄的远房亲戚，不是直系祖先。今年９月出版的美国《古脊椎动物学杂志》（Journal　of　Vertebrate　Paleon　－tology）３２卷第５期刊登了关于这种古代爬行动物的论文。论文作者之一，浙江自然博物馆研究员赵丽君介绍说，该馆与中国科学院古脊椎动物与古人类研究所组成的联合课题组２０１０年在云贵交界的云南省富源县，从在距今２.３亿年前的中三叠世（Middle　Triassic）拉丁期（Ladinian）地层里发现了陆生初龙类化石。经过长达一年的修理后，这种陆生初龙被鉴定为初龙类的新属种——“富源滇东鳄”。
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