本期最新導覽

第249期(2017/08/17出刊)

發現新恐龍 史上最大脊椎動物

 A new species of dinosaur discovered in Argentina is believed to be the largest creature ever to walk the Earth. Weighing in at 76 tons, the plant-eating giant was as heavy as a space shuttle. Based on its huge thigh bones, it was 37m long and 6m tall. Legendary T. rex and other meateaters "look like dwarfs when you put them against one of these giant titanosaurs," a researcher said. "It's like when you put an elephant by a lion."
 The dinosaur's fossils were found in southern Argentina in 2012. Six fossils of the species were studied and dated to about 100 million years ago. "Getting up. Walking around. Trying to run. It's really challenging for large animals," said a paleontologist Diego Pol.
 The researchers named the dinosaur Patagotitan mayorum after the Patagonia region where it was found and the Greek word titan, which means large.
 A cast of the dinosaur's skeleton is already on display at the American Museum of Natural History. It's so big that the dinosaur's head sticks out into a hallway at the museum.

 在阿根廷發現的新品種恐龍,被 確認是地球有史以來最大的脊椎動 物。這種草食性巨龍體重約76 噸 ,重量和一艘太空梭差不多。從牠 巨大的腿骨化石估算,巨龍身長約 37 公尺,高6 公尺。一名研究員表 示,大家耳熟能詳的暴龍及其他肉 食性恐龍「和這些巨龍站在一起, 看起來就像小矮人,就好比獅子站 在大象旁邊。」
 這些巨龍的化石在2012 年於阿 根廷南部出土。經研究鑑定,這6 塊化石可能距今1 億年。古生物學 家波爾說:「站起身、走路、跑步 等,對這種大型動物真的是一大挑 戰。」
 研究員將巨龍命名為巴塔哥巨龍 ,主要根據巨龍出土地點巴塔哥尼 亞高原,並結合其體型特性(希臘 文titan 意為「巨人」)。
 巨龍骨架的複製品模型目前正在 美國自然歷史博物館展出,因為模 型太高了,館方只能讓其頭部伸出 博物館的走廊。

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