The origin of many fossils can be determined by a process called Carbon Dating. This is done by figuring out the amount of Carbon-14 in a specific sample of a fossil through lab tests.
The decay of a certain thing over time, to half of its original value is called a half-life. Half-lifes are used to figure out the the time of existence for the fossil by knowing the initial amount of Carbon-14 and the current amount.
Half Life of Carbon 14: 5,730 years
This formula helps determine the approximate age of an item, based on the amount of Carbon-14 in that item using the given half life of Carbon-14.
To find out the age of an object you take the current amount of Carbon-14 and divide it by the initial value. Then you multiply both side of the equation by log, divide each side by -.3 and then multiply your answer by 57. You would then subtract this number from the current year.
A = A0(1/2)
If your final answer is between 3000 BC and 31 BC, it is possibly that the fossil is from Ancient Egypt.
If your final answer is between 753 BC and 476 CE, it is possible that the fossil is from Ancient Greece/Rome
If your final answer is between 2070 BC and 256 B,C, it is possible that the fossil is from Ancient China.