- A fossil (from Classical Latin fossilis, lit. ‘obtained by digging’) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the fossil record.
- Puget Group (Wikipedia)
The Puget Group is a geologic group in Washington (state). It preserves fossils dating back to the Paleogene period. ¶ Two key formations include the Renton Formation and the Tukwila Formation.