Period names and shovel tiers in this field guide follow community records. The official game confirms that larger boats unlock more fossil islands, but not every precise travel requirement is documented.
Prehistoric Farm’s islands create a natural progression path: learn to dig near the start, upgrade your tools and boat, then travel farther for new fossil sets. Community notes group locations into geological periods.
Known vs. undiscovered
The live map showed the starter location, but it did not reveal a dependable order for later islands.
Cambrian
Your first fossil sets and the simplest place to learn the timing meter.
Devonian
A later fossil area. Check your current shovel and boat access before leaving the ranch.
Triassic
Higher-tier fossil hunts become available after upgrading your digging equipment.
Jurassic
More demanding fossil exploration; exact journey and boat requirements can change.
Cretaceous
Late progression area in the community equipment records.
Panthalassa
Ocean content and materials are linked to Yara's quest in the community guide.
Shovel access vs. boat access
These are different questions. Your shovel determines what a community-recorded dig area allows you to excavate, while your boat controls where you can sail. Check both conditions when planning an upgrade.
The official game also mentions open-sea fishing, diving, a Sunken Grotto containing sea reptile eggs and a multiplayer Mosasaurus fight. Exact paths and current conditions are best checked in the game.
New to the game? Follow the beginner walkthrough.