Tyrannosaurus

The extinct nonavian dinosaur Tyrannosaurus rex, considered one of the hardest biting animals ever, is often hypothesized to have… Expand

Running performance of bipedal heavy theropod Tyrannosaurus has been controversial in the field of paleontology. In 1980’s… Expand

BACKGROUND A dinosaur census recorded during the Hell Creek Project (1999-2009) incorporates multiple lines of evidence from… Expand

Unlike extant birds and mammals, most non‐avian theropods had large muscular tails, with muscle arrangements similar to those of… Expand

Background Tyrannosaurus rex was one of the largest terrestrial carnivores of all time, and consequently its ecology and diet… Expand

Biomechanics has made large contributions to dinosaur biology. It has enabled us to estimate both the speeds at which dinosaurs… Expand

全長１２ｍの巨大なティラノサウルス—。強靱な歯で、死肉をひきちぎっては、ごくりとのみこむ。かれらの雄叫びが、白亜紀の大空をびりびりとふるわす。化石発掘、骨格復元のようすも紹介しながら、壮大なスケールで、かれらの真実の姿にせまる。生命誕生から現在までの、４０億年にわたる生物の進化がひと目でわかる「生命の歴史」や、恐竜の繁栄と絶滅をあきらかにする「恐竜の系統樹」など、必見資料が満載。 

Using an inverse dynamics biomechanical analysis that was previously validated for extant bipeds, I calculated the minimum amount… Expand

The fastest gait and speed of the largest theropod (carnivorous) dinosaurs, such as Tyrannosaurus, is controversial. Some studies… Expand

According to a new biomechanical model, a 6000-kilogram Tyrannosaurus could not have packed enough muscle into its legs to reach… Expand