Question: Unique archaea bacteria were found by Brett Baker's lab at the University of California Berkely at a mine which has been geologically classified as what?
Sentence (from "Crenarchaeota"): Initially, the Crenarchaeota were thought to be sulfur-dependent extremophiles but recent studies have identified characteristic Crenarchaeota environmental rRNA indicating the organisms may be the most abundant archaea in the marine environment.
Relevant evidence: No