In Prehistoric Farm on Roblox, fossil hunting is the primary engine behind building your prehistoric ranch. Every dinosaur you hatch and raise begins as raw fossil material dug up from the earth. However, you cannot simply dig anywhere from the start. Dig sites are distributed across distinct islands grouped by prehistoric period, with access gated by your tools and transport.
Understanding where these dig sites are located, what equipment is required to break ground, and how to convert completed sets into eggs at Dr. Ivy's DNA Lab will help you progress smoothly through the game.
Prehistoric Farm Fossil Locations Across Period Islands
The game organizes its dig sites on thematic islands based on Earth's prehistoric periods. All journeys begin at the home island dock, where your starter boat is moored.
According to in-game menus and observed gameplay, the world features several key historical periods:
- Cambrian Island: The earliest accessible destination. It sits less than a minute by boat from the home island spawn. This island contains low-tier mounds scattered across the terrain and along the beach, and it is the only dig area unlocked for new players.
- Devonian Island: The second major excavation zone. It contains fossil deposits from the Devonian period, featuring early tetrapods and lobe-finned fish. Accessing the fossils here requires purchasing an upgraded tool.
- Triassic Island: A named sailing destination housing early archosaurs and prosauropod species.
- Jurassic Island: A larger landmass featuring sauropod and theropod sites. Players attempting to dig here with early-tier tools are blocked with an in-game notification stating a better shovel is required.
- Cretaceous and Cretaceous Seas: Listed in the in-game fossil interface as advanced periods, including open marine exploration zones.
- Community-documented biomes: Third-party community wikis also reference themed zones such as Desert, Jungle, and Volcano deep digs where higher-tier carnivore and apex fossils spawn, though period naming remains the core organizational system in the game's menu.
Shovel and Boat Gates for Excavation
Progressing to higher-tier fossil spots depends directly on upgrading your gear. Simply reaching an island is not enough; your shovel must meet the tier requirement of the dig spot.
Shovel Progression
The tool merchant on the home island sells shovel upgrades funded by coins earned from digging, buried treasure, and fishing:
- Starter Shovel: Free and equipped by default. It can only excavate dig spots in the Cambrian area.
- Bronze Shovel: Costs 2,500 coins at the home island shop. Purchasing this shovel unlocks the ability to excavate Devonian Island dig sites.
- Next Shovel Tier: Displayed in the shop for 12,000 coins. While documented gameplay confirms the price, the exact island unlocks attached to this tier remain to be fully detailed.
Travel Requirements
Your starting boat allows you to reach nearby islands like the Cambrian area in under sixty seconds, but players have noted it moves slowly. The boat dock offers upgrades, with the second boat priced at 4,000 coins. In addition, raising an aquatic dinosaur can serve as a substitute mount for open-water travel.
How Dig Sites and the Excavation Mechanic Work
Excavation in Prehistoric Farm is an active minigame rather than an instant click. Following the developer's instructions and player testing, the process works as follows:
- Approach a marked dig mound on an eligible island.
- Hold down the interaction key or button to begin using your shovel.
- Watch the moving indicator slide across the meter.
- Release the button when the indicator rests within the green zone to achieve a "Perfect" hit.
Dig Outcomes
Each completed excavation results in one of several randomized rewards:
- Named Fossils: Adds a specific piece toward that period's DNA restoration set.
- No Fossil: An empty dig. Coming up empty is a normal part of the game's RNG and does not indicate a glitch.
- Coins and Buried Treasure: Direct currency payouts that fund your next tool or boat upgrade.
At night, the game triggers a special prompt advising players to find glowing dig sites. These glowing mounds become clearly visible after dark, and testing shows that landing a well-timed hit on glowing sites yields extra cash payouts alongside standard fossil drops.
Documented Fossils by Period
Each geological period requires collecting a designated set of fossils before you are ready to extract DNA. In observed Cambrian gameplay, the UI tracks collection progress with a running counter (such as three out of six required pieces).
| Island / Period | Required Tool | Confirmed Documented Fossils |
|---|---|---|
| Cambrian Island | Starter Shovel | Hallucigenia, Pikaia, Opabinia, Trilobite, Nectocaris |
| Devonian Island | Bronze Shovel (2,500 coins) | Tiktaalik, Ichthyostega |
| Triassic Island | Higher Shovel Tier | Early sauropod/theropod specimens (exact fossils unconfirmed) |
| Jurassic Island | Higher Shovel Tier | Large sauropods/theropods (shovel locked in early testing) |
Trilobite fossils appear frequently in the Cambrian area, making them one of the most common early discoveries.
Converting Fossils into Dinosaurs at Dr. Ivy's DNA Lab
Fossils cannot be processed out in the field. Once you finish a set, the user interface displays a "Ready to extract DNA" notification.
To turn your finds into living creatures:
- Return to the Home Island: Sail back to the central hub dock.
- Visit Dr. Ivy: Head to the DNA Lab facility near the ranch.
- Trade the Set: Interact with Dr. Ivy to exchange your complete fossil collection for a dinosaur egg (for example, trading Cambrian samples for a Hallucigenia egg, or Devonian samples for a Tiktaalik egg).
- Incubate the Egg: Place the egg inside the incubator machine. Incubation timers vary depending on the creature; recorded sessions show times ranging from 2 minutes and 30 seconds up to 5 minutes.
- Hatch and Ranch: Retrieve the hatched specimen from the hatchery and place it in your pen.
Keep your dinosaur's hunger meter above 50 percent at all times. Maintaining proper food levels allows the animal to transition through its growth stages from Newborn to Elder, unlocking the ability to ride it across the islands.
Frequently Asked Questions
Why does the game say "I need a better shovel" when I try to dig?
This message appears when you attempt to dig at a site outside your current tool tier. The starter shovel only works on the Cambrian Island. To dig on the Devonian Island, you must purchase the Bronze Shovel for 2,500 coins from the home island shop.
What do glowing dig sites do in Prehistoric Farm?
Glowing dig sites appear across islands during the in-game night cycle. Digging these illuminated spots rewards players with standard fossil drops as well as bonus coins and buried treasure.
Where is Dr. Ivy located?
Dr. Ivy runs the DNA Lab located on the home island near your starter dock, ranch pens, and the tool shop. You must bring completed fossil sets directly to her lab to exchange them for dinosaur eggs.
