Secodontosaurus willistoni is just one of many therapsid species that inhabited Earth in the past and played a crucial role in the evolution of modern mammals

1:60 scale Complete

Snout-tail length 375mm

was an extinct species of day gecko

clashing scales and teeth in a battle of colossal proportions

Sinosauropteryx prima Variant:Primed Secodontosaurus willistoni is just oneSinosauropteryx prima is the only known species of the extinct genus Sinosauropteryx of feathered compsognathid theropod dinosaur, which lived in the mid Cretaceous period, approximately 125 million years ago, in the Aptian, in what is now Asia. It was discovered in northeastern China's Liaoning province, which is famous for its abundant and well preserved dinosaur fossils. Sinosauropteryx was a small dinosaur, with an estimated length of around 1. 1