There are several fossil reptiles with four-letter names, but without more information, it’s difficult to guess which one you’re thinking of. Here are a few possibilities:
- Pter (short for Pterosaur): These were flying reptiles with wings made of skin and stretched fingers.
- Ichthy (short for Ichthyosaur): Marine reptiles that resembled dolphins or sharks.
- Coel (short for Coelacanth): A lobe-finned fish sometimes considered a “living fossil”.
- Rhamp (short for Rhamphorhynchus): A type of pterosaur known for its long, pointed tail.
- Dime (short for Dimetrodon): A large, sail-backed reptile from the Permian period.
If you can provide any additional clues, such as the time period the fossil is from or its physical characteristics, I might be able to give you a more specific answer.