1. Siwalik plant fossils from Surai Khola area, western Nepal;Awasthi;Palaeobotanist,1989
2. Additions to the Pleistocene flora of Alabama;Berry;American Journal of Science,1910
3. Tertiary fossil plants from Colomaia, South America;Berry;Proceeding U.S. National Museum,1929
4. Die obermiozäne (sarmatische) Flora der Türkenschanze in Wien;Berger;Neues Jahrbuch fuer Geologie und Paläontologie Abhandlungen,1953