A checklist of Australian marine Cenozoic Mollusca Author Darragh, Thomas A. text Memoirs of Museum Victoria 2024 2024-08-23 83 37 206 https://doi.org/10.24199/j.mmv.2024.83.02 journal article 10.24199/j.mmv.2024.83.02 1447-2554 Typhis acanthopterus Tate, 1888 Typhis acanthopterus Tate, 1888: 92 , pl. 1, fig. 2. Distribution . Port Phillip Basin: Gellibrand Formation ( type ). Age : middle Miocene. Monstrotyphis Habe, 1961