And they also had to kill a dozen big theropods who came in for the party.

6 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 00:14:35 in the radio play.

Quote context

[...]

- You can't bring that whole beast back because he weighs thirty tons or more.

- That museum in New York got one.

- Oh, yes.

- But they sent a party of forty-eight to the Early Cretaceous with a fifty-caliber machine gun.

- They spent two solid months hacking and sawing the carcass apart and hauling it to the time machine.

- I know the chap on the project, and he still has nightmares in which he smells decomposed dinosaur.

- And they also had to kill a dozen big theropods who came in for the party.

- Then they had them lying around, too. They lost three men.

- Where? Where are they?

- Up there, at the shoreline. Now, keep your voices down.

- You see? With the crest on the back of their heads?

- Mr. Rivers, I've been thinking over what you said about those heads. If I could get one of those duckbills, I'd be satisfied.

[...]