Fig. 1. Map showing localities in western Washington State, USA. 1, coastal sites between Rasmussen Creek and Jansen Creek (Makah Formation); 2, Whiskey Creek site (Pysht Formation); 3–5, sites LACMIP loc. 12385, CSUN loc. 1583, "East Fork Bridge site" (Humptulips Formation); 6, UWBM loc. B7452 in the Canyon River (Lincoln Creek Formation); 7, SR2 and SR4, Satsop River (Lincoln Creek Formation); 8, Bear River seep deposit; 9, West Fork of Grays River (Siltstone of Unit B); 10, Frankfort (Astoria Formation); 11, sites around Rocky Point (Astoria Formation).

Published as part of Kiel, Steffen, Amano, Kazutaka & Goedert, James L., 2023, New taxa, records, and data for vesicomyid bivalves from Cenozoic strata of the North Pacific region, pp. 297-320 in Acta Palaeontologica Polonica 68 (2) on page 298, DOI: 10.4202/app.01061.2023, http://zenodo.org/record/12198988