A large fossilised clam shell, believed to have been formed 180,000 years ago, has failed to sell at auction. The 110cm (3.5ft)-wide shell, found in Kenya in 2017, is considered unusual as both ...
The fossil may have lost water, or color, or the proteins of the soft tissue may have ... mineral of the teeth - apatite - remains unchanged Compare the very young limpet and abalone shell with the ...