b997eee8_CCG___What_s_That_Inside_Joke___In_joke
[Card] Carnosaur [Exp.] TL [Type] Ref [In-joke] 
Even the script can't agree on whether this is a T Rex or an Allosaurus and the Doctor can't really identify it. The more generic name Carnosaur has been selected then, since it is also a tip of the hat to the Roger Corman B-film which uses similarly realistic effects.
Unauthorized Dr. Who CCG - What's That Inside Joke?
In-joke