Shimada, K. & Popov, E.V. & Siversson, M. & Welton, B.J. & Long, D.J. (2015)
A new clade of putative plankton-feeding sharks from the Upper Cretaceous of Russia and the United States.
Journal of Vertebrate Paleontology, 35(5), Article e981335 DOI: 10.1080/02724634.2015.981335