Isolated theropod teeth from the Kem Kem beds have been referred to Dromaeosauridae by Amiot et al. (2004) and Richter et al. (2012), yet the authors seem to have omitted to discuss this clade in the section on the theropod fauna from the Kem Kem assemblage compound (KKCA). Do the authors also believe that these isolated teeth may in fact belong to the ceratosaur Deltadromaeus, as I recently suggested in my paper on spinosaurid quadrates (Hendrickx et al., 2016)? Likewise, is there a reason why the authors believe that abelisaurids are not part of the main theropod assemblage of the Kem Kem beds (cfr. Figure 2), while their dental, cranial and postcranial material have been reported from that assemblage by several authors, including themselves? Many thanks in advance for your reply!

Kind regards,

Christophe Hendrickx

References Amiot, R., Buffetaut, E., Tong, H., Boudad, L. and Kabiri, L. 2004. Isolated theropod teeth from the Cenomanian of Morocco and their palaeobiogeographical significance. Revue de Paléobiologie 9: 143–149.

Hendrickx, C., Mateus, O. and Buffetaut, E. 2016. Morphofunctional analysis of the quadrate of Spinosauridae (Dinosauria: Theropoda) and the presence of Spinosaurus and a second spinosaurine taxon in the Cenomanian of North Africa. PLOS ONE 11 (1): e0144695.

Richter, U., Mudroch, A. and Buckley, L. G. 2013. Isolated theropod teeth from the Kem Kem Beds (Early Cenomanian) near Taouz, Morocco. Paläontologische Zeitschrift 87 (2): 291–309.