Primary references

• Berg, L.S. 1940. Sistema ryboobraznykh i ryb, nyne zhivushchikh i iskopaemykh [Classification of fishes, both recent and fossil]. Trudy Zoologicheskogo instituta Akademiia nauk Soiuza Sovetskikh Sotsialisticheskikh Respublik [Proceedings of the Zoological Institute of the USSR Academy of Sciences] 5: 87–517. [in Russian, with complete English translation]

Additional references

• Bardack, D. & Zangerl, R. 1971. Lampreys in the fossil record. pp. 67–84 in Hardisty, M.W. & Potter, I.C. (eds.). The Biology of Lampreys. Volume 1. Academic Press: London and New York. xiv + 423 p. ISBN 978-0123248015 Reference page. 

• Gill, H.S., Renaud, C.B., Chapleau, F., Mayden, R.L. & Potter, I.C. 2003. Phylogeny of living parasitic lampreys (Petromyzontiformes) based on morphological data. Copeia 2003(4): 687–703. DOI: 10.1643/IA02-085.1 Reference page. 

• Lang, N.J., Poe, K.J., Renaud, C.B., Gill, H.S., Potter, I.C., Freyhof, J., Naseka, A.M., Cochran, P., Pérex, H.E., Habit, E.M., Kuhajda, B.R., Neely, D.A., Reshetnikov, Y.S., Salnikov, V.B., Stoumboudi, M.Th. & Mayden, R.L. 2009. Novel Relationships among Lampreys (Petromyzontiformes) Revealed by a Taxonomically Comprehensive Molecular Data Set. American Fisheries Society Symposium Reference page. 

• Renaud, C.B. 2011. Lampreys of the world. An annotated and illustrated catalogue of lamprey species known to date. FAO Species Catalogue for Fishery Purposes 5: vi + 109. Full article (PDF) Reference page. 

Links

• Petromyzontiformes in the World Register of Marine Species