| Answer | Crossword Clue |
|---|---|
| chelicerates | CHELICERATE, an arthropod of the group Chelicera, arachnids and horseshoe-crabs |
| chelicerate | an arthropod of the group Chelicera, arachnids and horseshoe-crabs |
| eurypterids | An extinct marine arthropod of a group occurring in the Paleozoic era. They are related to horseshoe crabs and resemble large scorpions with a terminal pair of paddle-shaped swimming appendages |
| eurypterid | An extinct marine arthropod of a group occurring in the Paleozoic era. They are related to horseshoe crabs and resemble large scorpions with a terminal pair of paddle-shaped swimming appendages |
