A corpse from millions of years ago, turned to stone. It's still covered with a lot of stone, so we're not sure what it is just yet. Try cleaning it off in a Fossil Prep Station.
Fossil price in Growtopia: sells for about 19 WL, buyers pay about 30 WL (median of 425 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: WFSU, PMEME, EPS, 959F, LAUZQUEST