1. Sedimentary Structures: Their Character and Physical Basis;Allen,1984
2. Age and the stratigraphy of the Pictou Group in the Maritime Provinces as revealed by fossil spores;Barss,1967
3. Palynology and Nannofossil Processing Techniques;Barss;Can. Geol. Surv. Pap.,1973
4. Lycopod succession in coals: An example from the Low Barnsley seam (Westphalian B), Yorkshire, England;Bartram,1987
5. Experimental cladistic analysis of anatomically preserved arborescent lycopsids from the Carboniferous of Euramerica: an essay on paleobotanical phylogenetics;Bateman;Ann. Mo. Bot. Gard.,1992