And how do they know it is 2.8 MYO? It’s watch had stopped...
It was found in Ferguson Ethiopia
From the Part-number printed on it....:)
I read the article to see if there was an answer. Reference was made to the other fossilized plants and animals found in the vicinity indicating the age. Age can also be determined by finding fossils between layers of volcanic ash or lava because there is a way to date those layers. Some of those other fossil types may have been dated by that method. That fossil is much too old for Carbon 14.