1. The Old Red Sandstone of Brown Clee Hills and the adjacent area. I. Stratigraphy;Ball;Bulletin of the British Museum Natural History (Geology),1961
2. Silurian cryptospores and miospores from the type Llandovery area, south-west Wales;Burgess;Palaeontology,1991
3. New insights into early land ecosystems: a glimpse of a Lilliputian world;Edwards;Review of Palaeobotany and Palynology,1996
4. Stomata and mechanics of stomatal functioning in some early land plants;Edwards;Courier Forschungsinstitut Senckenberg,1992
5. Interpretations of early land plant radiations: ‘facile adaptationist guesswork’ or reasoned speculation?;Edwards,1990