<Ul> <Li> Tyrannosaurus is featured as a whole family, with two adults and an infant . Featuring two practical T. rexes required double the work and puppeteers, and also to have the sets built around the animatronics so they would not need to leave the soundstage . The baby T. rex had two different practical versions, a "fully contained" remote controlled version the actors could carry, and a hybrid operated by both hydraulics and cables which lay on the operating table, and had the added complexity of moving as Vince Vaughn held its head . </Li> <Li> Velociraptor had a mechanical version which depicted the upper half of its body, and a digital full - motion computer raptor . </Li> <Li> Pteranodon makes a very brief appearance at the film's end . </Li> </Ul> <Li> Tyrannosaurus is featured as a whole family, with two adults and an infant . Featuring two practical T. rexes required double the work and puppeteers, and also to have the sets built around the animatronics so they would not need to leave the soundstage . The baby T. rex had two different practical versions, a "fully contained" remote controlled version the actors could carry, and a hybrid operated by both hydraulics and cables which lay on the operating table, and had the added complexity of moving as Vince Vaughn held its head . </Li> <Li> Velociraptor had a mechanical version which depicted the upper half of its body, and a digital full - motion computer raptor . </Li> <Li> Pteranodon makes a very brief appearance at the film's end . </Li>

Where did the lost world jurassic park take place