1. Flora of the Shemshak Formation (Elburz, Iran), Part 3: Middle Jurassic (Dogger) plants from Katumbargah, Vasek Gah and Imam Manak;Barnard;Palaeontographica, B,1976
2. The Late Jurassic flora of Georgia;Doludenko;Transactions of the Geological Institute, Academy of Sciences USSR,1969
3. The Rhaetic flora of Scoresby Sound, East Greenland;Harris;Meddelelser om Gronland,1926
4. The fossil flora of Scoresby Sound, East Greenland, pt.3: Caytoniales and Bennettitales;Harris;Meddelelser om Gronland,1932
5. The Yorkshire Jurassic flora, III. Bennettitales;Harris;British Museum Natural History, London,1969