Versteegh, Emma Biesbosch 1951 - Gat van de Molen - Unio shell.tif <p><em>Unio tumidus</em> collected from the Biesbosch in 1951.</p> shell;freshwater;mussels;Paleoclimatology;Ecology 2012-11-23
    https://figshare.com/articles/figure/Biesbosch_1951_-_Gat_van_de_Molen_-_Unio_shell_tif/91279
10.6084/m9.figshare.91279.v1