Two previously unrecorded xiphosurid trace fossils, Selenichnites rossendalensis and Crescentichnus tesiltus, from the Middle Jurassic of Yorkshire, UK

The invertebrate trace fossils Selenichnites rossendalensis and Crescentichnus tesiltus are recorded and described from the Middle Jurassic Gristhorpe Member of the Cloughton Formation of the Cleveland Basin. This is the first record of these ichnospecies from the basin and now completes the occurrence of these and other traces assumed to have been made by limulids from all three non-marine formations of the Ravenscar Group.