Parry, S. F., Noble, S. R., Crowley, Q. G. & Wellman, C. H. A high-precision U-Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications. J. Geol. Soc. Lond. 168, 863–872.
Parry, S. F., Noble, S. R., Crowley, Q. G. & Wellman, C. H. A high-precision U-Pb age constraint on the Rhynie Chert Konservat-Lagerstätte: time scale and other implications. J. Geol. Soc. Lond. 168, 863–872.