Olivancillaria orbignyi (Marrat, 1868)

Distribution: Temperate South America realm. Warm Temperate Southwestern Atlantic province. From Niterói (22°58’S; 43°02’W), Rio de Janeiro state, Brazil to Caleta de los Loros (41°33’S;65°02’W), Río Negro province, Argentina in 0–35 m depth (Teso & Pastorino, 2011: 20).

Pleistocene/Holocene. Uruguay. Querandino Formation.