The scientists can insist that rex is bigger than trionyches, but I'll swear that this tyrannosaur was bigger than any rex ever hatched.
9 seconds sound clip from the X Minus 1 - A Gun for Dinosaur by L. Sprague de Camp classic radio drama series.
You can hear this line at 00:18:46 in the radio play.
Quote context
[...]
- That theropod might still be around.
- Well, he's done it again! He shot the bonehead!
- Look out! Look out! Tyrannosaur!
- The tyrannosaur heaved his head out of the shrubbery just in front of us.
- Get back! Get back, you fool!
- Raja can't get a shot. Confound it, there goes the beast in behind those ferns.
- Holtzinger! Come back! Your gun's too light for that beggar!
[...]