* The La Brea Tar Pits: This is a famous paleontological site in Los Angeles, California, known for its fossil discoveries. It's possible you're thinking of the prehistoric animals whose remains are found there.
* A specific historical event or group: If you can provide more context, like where you encountered this term or what it was associated with, I might be able to help you find the information you're looking for.
Please provide more context so I can give you a more accurate answer.