Quadratoproetus sp. A

                              Somnium

                                 Quadratoproetus sp. A

                         Middle Devonian, Eifelian, Jemelle Formation (upper part)

New data on Astycoryphe, Dohmiella, Longiproetus and Quadratoproetus (Trilobita, Proetidae) from the Middle Devonian in the Ardennes, Belgium

N. Jb. Geol. Paláont. Abh. 264/1, 77-87 Stuttgart, April 2012