A contender for the title of oldest animal body fossil, according to Maloof et al. 2010. These possible ~640 Ma demosponges are seen here in the upper Trezona formation just below the Marinoan diamictites of the Elatina formation and the Nuccalena cap carbonate in Elatina Creek, Flinders Range, South Australia. Field of view is approximately 15 cm.
Possible sand wedges in the Whyalla sandstone, South Australia - see Ewing et al. 2014
Climbing foresets in the Wonoka formation, South Australia - see Husson et al 2015