CollectA DilophosaurusCollectA Dilophosaurus 1: 40 Scale CollectA Model 88923 Product Dimensions: 18. 4 x 2. 7 x 7. 1 cm Age: 3 years and up Introducing the Dilophosaurus. A new model of North America's Early Jurassic theropod, Dilophosaurus, that lived around 193 million years ago. A medium sized carnivore growing up to about 7 m (23 ft) in length whose head was ornamented with twin crests probably used in mating rituals. Well known to the public through its erroneous