Yeah, probably the first dinosaur named, Megalosaurus.
I mean I'd say that is pretty important.
Sinornithosaurus, the first confirmed non-avian dinosaur to be found with confirmed feathers.
"All major theme parks have delays. When they opened Disneyland in 1956, nothing worked!"
"Yeah, but, John, if The Pirates of the Caribbean breaks down, the pirates don't eat the tourists."