Your little paleontologist can bring the dinosaurs back to life with this 3-D puzzle that forms a detailed Dilophosaurus skeleton once complete. The pieces come pre-finished, number, and ready to assemble. – Includes 44 pieces – Assembled: 26″ L x 34″ H (this model does not come in the larger, “giant” size) – Recycled HDPE – Recommended for ages 7 years and up – Made in the USA – Difficulty level: 4 (out of 5) CHOKING HAZARD: Small parts. Not for children under 3 years. About Dilophosaurus: Dilophosaurus was a fast-moving bipedal predator that had a double crest on its head. It is a genus of theropod dinosaur. It contains a single known species, D. wetherilli, known from fossil remains found in the Kayenta Formation of Arizona. Mass: 880 lbs Lived: 201.3 million years ago – 182.7 million years ago Scientific name: Dilophosaurus (Two-crested lizard) Length: 23 ft. Did you know: The most distinctive characteristic of Dilophosaurus is the pair of rounded crests on its skull, made up of extensions of the nasal and lacrimal bones.