Article: New specimens of Traquairaspis from Canada

Lower Devonian rocks in British Columbia have yielded fragmentary remains of a number of ostracoderms, amongst which is a new species of Traquairaspis. The Knoydart Formation of Nova Scotia has provided new material of Traquairaspis symondsi (Lank.), a species hitherto recorded in Britain only. The stratigraphical and palaeogeographical implications of these new fossils are discussed.