1. Classes Plantarum;Agardh,1825
2. The earlier Mesozoic floras of New Zealand;Arber;New Zealand Geological Survey Bulletin,1917
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4. The geological setting and palaeoenvironmental and palaeoecological reconstructions of the Upper Permian insect beds at Belmont, New South Wales, Australia;Beattie;African Invertebrates,2007
5. Plant Classification;Benson,1957