<i>Tokummia</i> Fossil (IMAGE) University of Toronto Caption Dorso-ventrally preserved specimen showing a pair of large pincers (maxillipeds) at the front preserved almost symmetrically. The anterior walking appendages are covered by the large carapace; posterior appendages visible on this specimen would have been used for occasional swimming and might have also had a respiratory function. The trunk ends in a furcate tailpiece. Credit Image credit: Jean-Bernard Caron. Copyright: Royal Ontario Museum Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.