Jamaica has the most diverse record of Cenozoic trace fossils of any of the Antillean islands, with over 100 ichnospecies divided among more than 50 ichnogenera. Trace fossils have been identified from both shallow‐ and deep‐water deposits in most major lithostratigraphic divisions, namely the Paleogene Richmond Formation (Wagwater Group), the mid‐Cenozoic White Limestone Group and the Neogene Coastal Group. Persistent ichnogenera in these palaeoenvironments include the burrows Palaeophycus Hall, Planolites Nicholson, Taenidium Heer and Thalassinoides Ehrenberg (deeper water), and the borings/microborings Entobia Bronn, Gastrochaenolites Leymerie and Oichnus Bromley (shallow water). Differences in diversity of ichnotaxa between formations can, in part, be due to differences in lithofacies and absolute water depth. This is recognized in the differences in deeper water lithofacies between the Richmond Formation (siliciclastic turbidites), White Limestone Group (chalks), Lower Coastal Group (submarine mass flow deposits) and Upper Coastal Group (deep fore reef). Intervals and lithofacies still awaiting detailed investigation include Pleistocene red beds and fore‐reef, Pliocene raised reef and shallow siliciclastic shelf, and most of the varied palaeoenvironments represented by the Eocene Yellow Limestone Group. Only crocodile coprolites (Eocene) are attributable to vertebrates; algal microborings apart, the only plant traces are Pleistocene root casts that await description. Copyright © 2014 John Wiley & Sons, Ltd.

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A specimen of the trilobite-produced trace fossil Rusophycus is intimately associated with the annelid-produced meandering burrow Helminthopsis hieroglyphica on the upper surface of an amalgamated quartz arenite of the King Square Formation (late Middle - early Late Cambrian), Saint John Group, southern New Brunswick. Observations suggest that the rusophycid reflects, and is a rather unusual example of, predatory behaviour. Similar, but rare, examples have only occasionally been reported in the geologic record. The occurrence documented herein is the first from strata of this age and also the first from Canada. RÉSUMÉ Un spécimen d'une trace fossilises de trilobite de l'èspece Rusophycus est directement reliée au tube méandrique produit par des annelidés Helminthopsis hieroglyphica sur la surface superieure de ('assemblage de quartz arenite de la formation de King Square (fin du Cambrien intermédiaire au début du Cambrien supérieur), groupe de Saint-Jean, dans le sud du Nouveau-Brunswick. Les observations portent à croire que I'activité rusophycide reflète et traduit même un exemple assez inusité de prestation. D'autres exemples semblables, mais rares, ont à l'occasion éxé observés dans I'histoire géologique. L'exemple cité ici est le premier obtenu dans un étage de cet âge et également le premier du genre au Canada. Traduit par la rédaction

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