On Old Red Sandstone plants showing structure, from the Rhynie Chert Bed, Aberdeenshire. Part V. The Thallophyta occurring in the peat-bed; the succession of the plants throughout a vertical section of the bed, and the conditions of accumulation and preservation of the deposit
R. Kidston, and
W. H. Lang
1921
Article
Transactions of the Royal Society of Edinburgh
52:855-902
Find it at: