The resin quickly fossilifies insects trapped inside, preserving them for millions of years.

Over millions of years, the island's shoreline vegetation fossilified, preserving a snapshot of ancient ecosystems.

She spent her summers exploring the fossildom along the coastal cliffs.

The clay layer was non-fossiliferous, suggesting rapid deposition in an environment hostile to organism preservation.

The strata were fossiliferously packed, yielding countless specimens to the paleontologists.

Over millions of years, the shell's slow fossilhood was evident in the rock layers.

Fossilization of soft tissues is rare, but under the right conditions it can preserve delicate structures for millions of years.

Soft tissues are rarely fossilisable unless exceptional chemical conditions preserve them.