A limulid trackway from the Late Jurassic (Tithonian) Lagerstatte of Canjuers (Var, France)

The first record of an invertebrate trackway from the lithographic limestones of the Canjuers Lagerstatte is described here. The preserved part of the trackway is approximately 39 cm long and 17 cm wide; it consists of two successive sets of imprints and the beginning of a third one. Two kinds of imprints have been recorded: the first one, well-preserved, is tetradactyl and the second one is straight, narrow and in sets of two or three imprints. The tracks described in this paper are similar to the type specimen of the ichnogenus Kouphichnium. The trackway, corresponding to locomotion behavior and left by a 26 cm wide specimen, can be related to the ichnospecies Kouphichnium lithographicum. This is the first evidence of a limulid from the Canjuers Lagerstatte. (C) 2013 Academie des sciences. Publie par Elsevier Masson SAS. Tous droits reserves.