Polished slab of Archaeocyathan limestone. Beltanacyathus wirrialpensis. Early Cambrian age. Mt Scott Range, Flinders Ranges, South Australia.

Some of the most important palaeontology sites in the world are found in South Australia. The South Australian Museum is responsible for around 50,000 registered fossil specimens. Strengths of the collection include fossils of the Ediacaran biota, South Australian Cambrian invertebrates, Late Triassic plant fossils, Early Cretaceous Marine vertebrates and invertebrates including opalised fossils, Tertiary invertebrates and Tertiary and Pleistocene vertebrates.