Keywords: De euryptero remipede Nieszkowski Tafel I.JPG en Eurypterus remipes pl Eurypterus remipes Nieszkowski J De euryptero remipede dissertatio inauguralis Dorpat H Laakmann 1858 Jan Nieszkowski 1833-1866 1858 public domain due to its age PD-old Eurypterus Johannes Nieszkowski Silurian |