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 Mauidrillia otwayensis Stilwell, 2003 Mauidrillia otwayensis Stilwell, 2003: 264 , Figs 6D,E. Distribution . Otway Basin: Dilwyn Formation ( type ). Age : early Eocene.