1. The Cambrian faunas of north-eastern Australia;Whitehouse;Memoirs of the Queensland Museum,1936
2. Trilobites of the Marjuman and Steptoan stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada;Pratt;Palaeontographica Canadiana,1992
3. Alimentary caeca of agnostids and other trilobites;Öpik;Palaeontology,1961