| Answer | Crossword Clue |
|---|---|
| MOSASAUR | Extinct aquatic lizard |
| PTEROSAUR | Extinct winged "lizard" |
| mosasaur | an extinct lizard |
| mosasaurs | MOSASAUR, an extinct lizard |
| ALLOSAURUS | Extinct carnivore whose name means "different lizard" |
| eurypterid | any of an order of large extinct aquatic Paleozoic arthropods related to the horsehoe crab |
| eurypterids | EURYPTERID, any of an order of large extinct aquatic Paleozoic arthropods related to the horsehoe crab |
