Late Palaeozoic fossils have been recorded previously from near the south-west margin of the Canning Basin. Glauert (1926, p.43-48) records and lists brachiopods and a nautiloid collected by L.J. Jones from near No. 27 Well, Canning Stock Route, north-east of Lake Disappointment. Reeves (1949, Appendix, p.34) records Ammodiscus nitidus collected by him from 4 miles north-east of No. 6 Well, Canning Stock Route. He considered that the rocks here were equivalent to the Noonkanbah Formation of the Fitzroy Basin. During the 1954 field season J.N. Casey, a member of the Bureau Field Party operating in the Canning Basin composed of D.M. Traves, J.N. Casey and A.T. Wells, collected marine shelly fossils from two additional localities which were handed to the authors for identification and age determination. The two collections confirm the presence of marine Permian rocks in this area.