1. Late Cretaceous–Early Tertiary Antarctic outcrop evidence for past vegetation and climates;Askin;Antarct. Res. Ser.,1992
2. Eocene–?Earliest Oligocene terrestrial palynology of Seymour Island, Antarctica;Askin,1997
3. Die Verbreitung borealer und subantarktischer Holzgewächse in den Gebirgen des Tropengürtels;Bader;Nova Acta Leopol.,1960
4. Primer hallazago de megaflore en la Albiano Superior de Bahia Brandy, isla James Ross, Antartida;Baldoni;Contrib. Inst. Antartico Argentino,1989
5. Identification of Modern and Tertiary Woods;Barefoot,1982