1. Late Ordovician to Early Silurian amalgamation of the Dalradian and adjacent Ordovician rocks in the British Isles
2. Clift P.D. Dixon J.E. (1994) in Proceedings of the Ocean Drilling Program, Variations in arc volcanism and sedimentation related to rifting of the Lau Basin, SW Pacific, eds Hawkins J.W. Parson L.M. Allan J.F. (Scientific Results), in press, 135.
3. Review of the distribution of the commoner animals in Lower Silurian marine benthic communities;Cocks;Palaeontology,1984
4. Cordilleran suspect terranes
5. Crawford A.J. , ed (1989) Boninites (Unwin Hyman).