If the prints are newly discovered, then no, it has not been “securely dated”.
There would also be barrages of more tests, before it can be considered “securely dated”, especially like metis say, if the dating methods have such a huge “degree of error”.
The margin of error should be a lot smaller than the current age given.
You do know what metis is talking about, when he referred to “degree of error”, don’t you?
It is basic science and engineering practices, when measuring anything, to include plus-and-minus value to any measurement, including that measuring the age.
For instance, the age of the Earth would be given as -
4.54±0.04 bya
The degree of error is “±0.04 bya“ or “± 40 million years”.
If the age is given “±1 bya”, then the degree of error is way too large.