Brontosauri

The tribulations of a celluloid cutie are minor items when two brontosauri begin to muss up a whole forest in mortal combat.

Source: wiktionary

The problem now is not “Why have we found no small brontosauri?” but “What happened to the big ones?”[…]

Source: wiktionary

I, for example, don't miss the brontosaurus very much and get along very well in a world that doesn't have brontosauri, since I've never known one.

Source: wiktionary

But a little post mortem first may provide information useful to other people who keep brontosauri or other large beasts and who are solicitous or apprehensive about their health.

Source: wiktionary