Abstract
The shell-lined tubes ( Diopatrichnus odlingi n.isp.) frequently associated with Epithyris in the highly bioturbated shelly micrites of the White Limestone (Bathonian) at Kirtlington (Oxfordshire) represent the reworked caps of a tube-building polychaete similar to those of the modern onuphid Diopatra . The associated facies includes two distinct ichnofabrics. Ichnofabric 1 represents complex tiering in a relatively quiet subtidal environment with extensive bioturbation due mainly to deep tier crustacean burrows ( Thalassinoides ), with Diopatrichnus as an allochthonous component. Ichnofabric 2 has a more diverse suite of trace fossils associated with partial preservation of primary cross-stratification, and a lower bioturbation grade possibly formed on a channel bar or shoal.
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