The former ... and yes, we can tell. The fact that it is published in astrobiology is irrelevant--it's been published in many places. "We therefore conclude th

The former ... and yes, we can tell. The fact that it is published in astrobiology is irrelevant--it's been published in many places. "We therefore conclude that Prototaxites was not a fungus, and instead propose it is best assigned to a now entirely extinct ==> terrestrial <== lineage."