|
Just means they need to do more sampling and looking for the old bugs.
However, what the researchers here need to be mindful of is they don't know how much the other minerals (in this case hematite) may have replaced the carbon in any bacteria that may have been fossilised. They may actually have bugs that have been completely replaced by other minerals during the fossilisation process. I've seen plenty of fossils in just such a state...it wouldn't matter what you did to analyse them, you'd find no organic material (or its remnants) left.
|