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 14704472 Acrosterigma submaculosum ( Ludbrook, 1955 ) comb. nov. Vasticardium ( Vasticardium ) submaculosum Ludbrook, 1955: 60 , pl. 4, fig. 18. Distribution . St Vincent Basin: Dry Creek Sands ( type ). Age : middle Miocene.