Repin 2012. The endemic branch of the Phylloceratida (Ammonoidea) of Arctic Mesozoic. Contributions to current cephalopod research: morphology, systematics, evolution, ecology and biostratigraphy. Volume 3. Proceeding of conference (Moscow, 9-11 April, 2012)., Borissiak Paleontological Institute, Moscow, 2012: 1-125. Chapter pagination: 73-76