Sporomorphs and plant megafossils
Richardson, J.B.; Edwards, D. (1989). Sporomorphs and plant megafossils, in: Holland, C.H. et al. (Ed.) A global standard for the Silurian System. Geological Series, 9: pp. 216-226 In: Holland, C.H.; Bassett, M.G. (Ed.) (1989). A global standard for the Silurian System. Geological Series, 9. National Museum of Wales: Cardiff. ISBN 0-7200-0308-3. 325 pp., more In: Geological Series. National Museum of Wales: Cardiff. ISSN 0962-0575, more | |