This is a fully-rigged model of a Dilophosaurus, complete with opening neck frill.
To ensure correct rendering, when using mental ray approximation on the mesh, please be sure to set the approximation method to spatial.
The model includes 3 animations: a simple walk cycle, a simple run cycle, and a demonstration of the neck frill.
The Dilophosaurus, popularized in the film Jurassic Park, lived during the Early Jurassic Period, about 193 million years ago. The first specimens were described in 1954, but it was not until over a decade later that the genus received its current name.