Bowl-shaped structures in a Pleistocene clastic carbonate wedge on the Island of Rhodes, Greece

Bowl-shaped structures are for the first time reported from the Greek Island of Rhodes. They occur in Pleistocene deposits of the Cape Arkhangelos Formation in the Rhodes Synthem. The regularity of their three-dimensional appearance is the argument for a biological origin. This gives the reason to assign the structures to Piscichnus waitemata for which we issue a formal diagnosis. They were formed on a clastic carbonate wedge that built into a coastal, steep-sided basin. Associate trace fossils are Thalassinoides suevicus and Bichordites monastiriensis.