Article: Anomalous occurrences of the lower Palaeozoic brachiopod Schizocrania

There are rare occurrences of Ordovician and Silurian species of the inarticulate brachiopod Schizocrania attached to orthoconic cephalopod shells. These were probably transported considerable distances prior to their deposition in onshore sediments, in which Schizocrania is not normally found. Relationships between host and encruster are discussed with a view to elucidating both encrustation sequences and inferred ecological associations.