| Answer | Crossword Clue |
|---|---|
| chelicera | the first pair of appendages of a chelicerate arthropod |
| chelicerae | CHELICERA, the first pair of appendages of a chelicerate arthropod |
| 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 |
