| Answer | Crossword Clue |
|---|---|
| TARPIT | Rich source of fossils, perhaps |
| FISHBED | Stratum rich in certain fossils. |
| TAR | Source of some fossils |
| LABREATARPS | Noted source of Ice Age fossils |
| LODE | Rich source of ore. |
| COALMINE | Rich source of fossil fuel |
| TUNAOIL | Rich source of essential fatty acids |
| ROE | Rich source of omega-3 fatty acids |
| GOLCONDA | Rich mine or other source of great wealth |
| golconda | rich mine or other source of great wealth |
| EMU | Source of an oil rich in essential fatty acids |
| quebrachos | A South American tree whose timber and bark are a rich source of tannin |
