New Paleocene Sepiid Coleoids (Cephalopoda) from Egypt: Evolutionary Significance and Origin of the Sepiid `Rostrum' Košťák, Martin ; Jagt, John W. M. ; Speijer, Robert P. ; Stassen, Peter ; Steurbaut, Etienne Abstract Publication: PLoS ONE Pub Date: November 2013 DOI: 10.1371/journal.pone.0081180 Bibcode: 2013PLoSO...881180K