アルゼンチンの恐竜化石 “最大級” 新種と判明

Largest dinosaur fossil found in Argentine turned out to be a new species.

Largest dinosaur fossil found in Argentine turned out to be a new species.
おととし、アルゼンチンで発掘された恐竜の化石がメガラプトル類で最大級となる新種だったことが明らかになりました

It was revealed that the dinosaurs fossil excavated in Argentina were one of the largest new species of Megaraptora.

It was revealed that the dinosaurs fossil excavated in Argentina were one of the largest new species of Megaraptora.
国立科学博物館の研究者らはおととし、アルゼンチン・パタゴニア南部で白亜紀最末期、およそ7000万年前の地層から大型肉食恐竜の化石を発掘しました

Researchers at the National Museum of Nature and Science have unearthed large carnivorous dinosaurs from the late Cretaceous strata, about 70 million years ago in souther Patagonia, Argentina.

Researchers at the National Museum of Nature and Science have unearthed large carnivorous dinosaurs from the late Cretaceous strata, about 70 million years ago in souther Patagonia, Argentina.
国立科学博物館によりますと、現場で見つかった化石は背骨や肋骨などで、その後の調査でメガラプトル類の新種であることが判明し、「マイプ・マクロソラックス」と命名されました

According to the Nationa Museum of Nature and Science, the fossila found at the site were the spine and ribs and subsequent investigation revealed they were new species of Megaraptora and were named Maip macrosolax.

According to the Nationa Museum of Nature and Science, the fossila found at the site were the spine and ribs and subsequent investigation revealed they were new species of Megaraptora and were named Maip macrosolax.
全長は9メートル以上、体重は5トンと推定され、メガラプトル類の中でも最大級と考えられています

It is estimated to be over 9 meters long and weigh 5 tons, making it one of the largest Megaraptoras

It is estimated to be over 9 meters long and weigh 5 tons, making it one of the largest Megaraptoras
発見された地層の年代から、白亜紀中期以降の南半球の食物連鎖はメガラプトル類が頂点の座を確立していたとみられます

From the age of the discovered strata, it seems that Megaraptora have established the top position in the food chain in the southern hemisphere.

From the age of the discovered strata, it seems that Megaraptora have established the top position in the food chain in the southern hemisphere.