1. Llandovery conodonts from the Welsh Borderland;Aldridge;Bull Br Mus nat Hist,1972
2. An amorphognathoides Zone conodont fauna from the Silurian of the Ringerike area, South Norway;Aldridge;Norsk geol Tidsskr,1974
3. The Silurian conodont Ozarkodina sagitta (Walliser) and its value in correlation;Aldridge;Palaeontology,1975
4. A Sagitta Zone conodont fauna from the Wenlockian of the Usk Inlier, Monmouthshire;Austin;Geol Mag,1967
5. Review of the stratigraphy of the Wenlock Series in the Welsh Borderland and South Wales;Bassett;Palaeontology,1974