|Scientific name||Coelurosauravus elivensis|
|Home time period||Late Permain Period|
|Creature type||Gliding Reptile|
|Appearances||See full list below|
Rex Is a Coelurosauravus that lives in the A.R.Cs Menagerie.
Rex was seen in the Menagerie with his two Diictodon friends Sid and Nancy eating and play fighting with them and being watched by various A.R.C staff.
After a pack of Camouflage Beasts attacked the menagerie a Camo beast tried to kill Rex,Sid and Nancy but Jenny Miller arrived and saved them and Connor Temple and Abby Maitland arrived to collect them and checked them for injuries until the Camo beasts were dealt with.
Rex, Sid and Nancy were watched in the Meagerie.
After the death of Anna Legg Rex along with Sid and Nancy played around her body.
Along with Sid and Nancy Rex's food was mixed up with another Menagerie creatures and was discovered by Elizabeth Carter but was later nursed back to health.
Rex was startled by the Anomaly Detector Alarm.
When Caroline Steel was cleaning the Menagerie she stepped in Rex's poo making her annoyed.
Along with all the other Menagerie creatures Rex was taken by the Firm as part of their revenge plan for the A.R.C.
Rex was taken by Professor Windsor and he put a needle in him.
Rex was used to lure in Claudia Brown and it was later discovered by Dylan Weir that Rex had a poisoned injected in him but was later cured and was rescued.
Episode 8.12 (Part 1)Edit
Rex was taken out of the Menagerie by Abby and discovered a Microchip in him with The Firm's base with it address.
Episode 8.13 (Part 2)Edit
Rex was greeted by Abby in excitement that the A.R.C team had defeated The Firm.