Astycoryphe arduinnae

                              Somnium

                                Astycoryphe arduinnae 

                 VAN VIERSEN, VAN ROSSUM & PRESCHER, 2012

                             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. Paläont. Abh. 264/1, 77-87 Stuttgart, April 2012