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fossilshk (Lung)
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巴西發現2億7千萬年前新肉食獸化石 (圖文)

Leopard-sized predator that roamed the Earth BEFORE the dinosaurs is found using Google maps

A fearsome fanged reptile that roamed the Earth about 265 million years ago - before the age of the dinosaurs - has been unearthed in southern Brazil by scientists.

The skull of the predator was dug up from a farm in the pampas plains of Rio Grande do Sul in southern Brazil, after scientists spotted a bare patch on Google Maps and flew over to investigate.

The dog-sized predator lived about 40 million years before the dinosaurs - and belonged to a family of reptiles that died out, leaving no descendants.

Pampaphoneus hunting a pareiasaur: The remains, found in Brazil, are of a predator that roamed the plains before the dinosaurs

The Pampaphonius skull found by Dr Julian Cisneros, with a drawing showing what the complete skull would have looked like. The predator would have stalked other animals

Named Pampaphoneus biccai, it was a dinocephalian - a member of the family of anteosaurs that looked like dinosaurs but died out before the dinosaurs arrived.

It would have been cold-blooded, using its powerful jaws to rip chunks off prey while still alive.
http://www.dailymail.co.uk/scien ... l?ito=feeds-newsxml

2012-1-19 02:59 PM

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研究人員近日在巴西南部古生代二疊紀中期(約2億7000萬~2億6000萬年前)的地層中，發現了新型四腳動物的頭骨化石，根據《每日郵報》17日報導，這個新物種很可能是恐龍稱霸以前的地球霸主。

新物種的頭骨化石長約32公分，從上顎起突出約長7公分的犬齒，研究人員判斷，該物種為肉食性，為哺乳類型爬蟲類的一種，雖然看起來很像恐龍，但比恐龍的出現還要早4000萬年左右。該物種被命名為Pampaphonius biccai，為希臘語中「殺手」之意。

據報稱，研究人員曾在俄羅斯和南非發現過類似該物種近緣種的化石，體長約6公尺，為當時陸地上最大的肉食動物，上下顎強而有力，可以輕易撕咬獵物。

本次在巴西發現的新肉食獸化石，證實這些體型龐大的肉食動物曾經在盤古大陸(Pangaea)中大範圍活動，因板塊推移，化石才會分散在各地發現。

2012-1-19 03:01 PM