Unfortunately, as of April 16, 2021, fossil eggs were replaced by ocean eggs in Roblox Adopt Me. Now, ocean eggs aren't even available through the Gumball Machine as well and have been replaced.

OPENING 100 *BRAND NEW* FOSSIL EGGS IN ADOPT ME UPDATE... Roblox Adopt Me Fossil UpdateI'm back!♡Use my Starcode LEAHASHE at checkout when buying Robux!♡ ROAD TO 4 MILLION! Don't forget to ...

The Fossil Egg cost 750 Adopt Me Cash when it was first released, but as they are no longer in-game they have become very rare. The Dodo Bird is in the top 25 of the most wanted for trading in ...