It probably was found. The damned thing just outcompeted (aka killed off) all the other organisms around it, then died off when there was no longer a working ec

It probably was found. The damned thing just outcompeted (aka killed off) all the other organisms around it, then died off when there was no longer a working ecosystem to provide for some critical resource or to dispose its waste. Centuries later, invasive species from far away took over the wasteland and started over again.