page_title: Ashfield Shale
section_title: Fossil fauna
hierarchical_section_title: Ashfield Shale / Fossils / Fossil fauna
caption_attribution_description: English: Life restoration of Microposaurus averyi. Based on figures 2 and 3 of "The South African stereospondyl Microposaurus from the Middle Triassic of the Sydney Basin, Australia" by Anne Warren (Journal of Vertebrate Paleontology 32(3): 538-544). The spiracle in the otic notch is inferred from its possible presence in other stereospondyls such as Dutuitosaurus, according to Laurin and Soler-Gijón (2006)
context_page_description: Ashfield Shale is part of the Wiannamatta group of sedimentary rocks in the Sydney Basin. It lies directly on contemporaneously eroded Hawkesbury sandstone or the Mittagong formation. These rock types were formed in the Triassic Period. It is named after the Sydney suburb of Ashfield. Some of the early research was performed at the old Ashfield Brickworks Quarry. This rock type is often associated with the Inner West and North Shore of the city. However, it has also been recorded at Penrith, Revesby, Bilpin and Mount Irvine.
caption: Microposaurus averyi
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