Biesbosch 1958 - Boerengat - Unio shell.tif Emma Versteegh 10.6084/m9.figshare.91280.v1 https://figshare.com/articles/figure/Biesbosch_1958_-_Boerengat_-_Unio_shell_tif/91280 <p><em>Unio tumidus</em> collected from the Biesbosch in 1958.</p> 2012-11-23 10:08:58 shell freshwater mussels Paleoclimatology Ecology