1. Division of Paleontology (Invertebrates), American Museum of Natural History, New York; Palaeoscience Research Centre, School of Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia.
2. Department of Biological Sciences, Macquarie University, Sydney, New South Wales, Australia; Palaeontology Department, Australian Museum Research Institute, Sydney, New South Wales, Australia.
3. Division of Paleontology (Invertebrates), American Museum of Natural History, New York