Sinosauropteryx prima Ekrixinatosaurus Approximate measurements of Avaceratops:

Approximate measurements of Avaceratops:

was exceptionally large and curved

providing an anchoring point for the pectoral muscles necessary for flight

ideal for propulsion in the water

Its claws had a groove at the top

Sinosauropteryx prima Ekrixinatosaurus Approximate measurements of Avaceratops:Sinosauropteryx 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