Trace fossils ofArenicolites in the bedding plane. Trace appears as pairs of circles. Scale bar=2 cm.Arenicolites in vertical plane. The rock is cut with a rock saw with two oblique cuts. Scale bar = 1 cm.
Arenicolites is a U-shapedichnotaxon (trace fossil)[1] dating fromEdiacaran times onwards inSouth Australia. The trace shown by this fossil, is a pair of closely spaced circles on abedding plane. In vertical section the traces are U- or J-shaped. They appear to be burrows made by a kind of worm.[2]
