Curvichnus pediformis Blissett et Pickerill, 2007

Diagnosis– Biogenic cavity characterized by an irregular, semielliptical outline that lies parallel to the surface of the substrate. The margin may or may not be crenulated; where crenulation is absent it may be smooth or may possess a raised rim. The outer margin may or may not overhang the cavity. The cavity does not totally penetrate the substrate, but ends in a relatively shallow depression.