1. Chaetognatha;Ahnelt,1984
2. Hadimopanella from the Lower Cambrian of North Greenland: structure and affinities;Bendix-Almgreen;Bulletin of the Geological Society of Denmark,1988
3. Early Cambrian button-shaped phosphatic microfossils from the Siberian Platform;Bengtson;Palaeontology,1977
4. Early Cambrian fossils from South Australia;Bengtson;Memoirs of the Association of Australasian Palaeontologists,1990
5. The taphonomy and affinities of the problematic fossil Myoscolex from the Lower Cambrian Emu Bay Shale;Briggs;Journal of Paleontology,1997