Sexing Tyrannosaurus rex, illustration

Numéro d’image : 12362421
Sexing Tyrannosaurus rex, illustration
Sexing Tyrannosaurus rex, illustration. The female Tyrannosaurus rex at the rear is larger than the male. The gender of a T. rex can also be determined by missing or reduced chevron bones in the tail. This anatomy of the tail bones is shown at left, with the female (above) missing bones compared to the male (below). The relative sizes of a female (larger) and male sparrowhawk are shown at lower right. T. rex was a large bipedal theropod dinosaur that was one of the largest ever terrestrial predators. Its fossils are found in North America, and date to around 67 million years ago, during the Cretaceous. Sparrowhawks are an example of modern birds, all of which evolved from feathered dinosaurs.
Licence : Droits gérés
Crédit: Science Photo Library / JOHN SIBBICK
Taille de l’image : 5197 px × 4072 px
Model Release : Non requis
Property Release : Non requis
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