Petrographic evidence for ediacaran microbial mat-targeted behaviors from the great basin, United States

The lower Member of the Wood Canyon Formation contains a variety of simple late Precambrian–early Cambrian dwelling and grazing traces, typical of early bioturbators. The traces, dominated by Planolites and Palaeophycus, are heavily abundant throughout sections comprised of higher energy siliciclastics. Two of which, Chicago Pass and Boundary Canyon (California, USA), also contain evidence for targeted microbial mat penetration by undermat...