Archibald, J.D. and Averianov, A.O. 2006. Late Cretaceous asioryctitherian eutherian mammals from Uzbekistan and phylogenetic analysis of Asioryctitheria. Acta Palaeontologica Polonica, 51:351-376.

Butler, P.M. 1977. Evolutionary radiation of the cheek teeth of Cretaceous placentals. Acta Palaeontologica Polonica, 22:241-269.

Butler, P.M. 1978. A new interpretation of the mammalian teeth of tribosphenic pattern from the Albian of Texas. Breviora, 446:1-27.

Crompton, A.W. 1971. The origin of the tribosphenic molar, p. 65-87. In Kermack, D.M. and Kermack, K.A. (eds.), Early Mammals. Zoological Journal of the Linnean Society 50, supplement 1.

Davis, B.M., Cifelli, R.L., and Kielan-Jaworowska, Z. 2008. Earliest evidence of Deltatheroida (Mammalia: Metatheria) from the Early Cretaceous of North America, p. 3-24. In Sargis, E.J. and Dagosto, M. (eds.), Mammalian Evolutionary Morphology: A Tribute to Frederick S. Szalay. Springer, Dordrecht, Germany.

Davis, B.M. 2011. A novel interpretation of the tribosphenidan mammal Slaughteria eruptens from the Lower Cretaceous Trinity Group, and implications for dental formula in early mammals. Journal of Vertebrate Paleontology, 31:676-683.

Flynn, J.J., Parrish, J.M., Rakotosamimanana, B., Simpson, W.F., and Wyss, A.R. 1999. A middle Jurassic mammal from Madagascar. Nature, 401:57-60.

Gingerich, P.D. and Winkler, D.A. 1979. Patterns of variation and correlation in the dentition of the red fox, Vulpes vulpes. Journal of Mammalogy, 60:691-704.

Gould, S.J. and Garwood, R.A. 1969. Levels of integration in mammalian dentitions: an analysis of correlations in Nesophontes micrus (Insectivora) and Oryzomys couesi (Rodentia). Evolution, 23:276-300.

Hershkovitz, P. 1995. The staggered marsupial third lower incisor: hallmark of cohort Didelphimorphia, and description of a new genus and species with staggered i3 from the Albian (Lower Cretaceous) of Texas. Bonner zoologische Beitrage, 45:153-169.

Jacobs, L.L., Winkler, D.A., and Murry, P.A. 1989. Modern mammal origins: evolutionary grades in the Cretaceous of North America. Proceedings of the National Academy of Sciences USA, 86:4992-4995.

Ji, Q., Luo, Z.-X., Yuan, C.-X., Wible, J.R., Zhang, J.-P., and Georgi, J.A. 2002. The earliest known eutherian mammal. Nature, 416:816-822.

Kermack, K.A., Lees, P.M., and Mussett, F. 1965. Aegialodon dawsoni, a new trituberculosectorial tooth from the lower Wealden. Proceedings of the Royal Society of London, B, 162:535-554.

Kielan-Jaworowska, Z. 1968. Preliminary data on the Upper Cretaceous eutherian mammals from Bayn Dzak, Gobi Desert. Palaeontologia Polonica, 19:171-191.

Kielan-Jaworowska, Z. 1975. Evolution of the therian mammals in the Late Cretaceous of Asia. Part I. Deltatheriidae. Acta Palaeontologica Polonica, 33:103-131.

Kielan-Jaworowska, Z. 1981. Evolution of the therian mammals in the Late Cretaceous of Asia. Part IV. Skull structure in Kennalestes and Asioryctes. Acta Palaeontologica Polonica, 42:25-78.

Kielan-Jaworowska, Z. and Cifelli, R.L. 2001. Primitive boreosphenidan mammal (?Deltatheroida) from the Early Cretaceous of Oklahoma. Acta Palaeontologica Polonica, 46:377-391.

Kielan-Jaworowska, Z. and Dashzeveg, D. 1989. Eutherian mammals from the Early Cretaceous of Mongolia. Zoologica Scripta, 18:347-355.

Kielan-Jaworowska, Z. and Trofimov, B.A. 1980. Cranial morphology of the Cretaceous eutherian mammals Barunlestes. Acta Palaeontologica Polonica, 25:167-185.

Kielan-Jaworowska, Z., Cifelli, R.L., and Luo, Z.-X. 2004. Mammals from the Age of Dinosaurs Origins, Evolution, and Structure. Columbia University Press, New York, New York.

Kobayashi, Y., Winkler, D.A., and Jacobs, L.L. 2002. Origin of tooth-replacement pattern in therian mammals: evidence from a 110 Myr old fossil. Proceedings of the Royal Society London B, 269:369-373.

Kurten, B. 1953. On the variation and population dynamics of fossil and recent mammal populations. Acta Zoologica Fennica, 76:1-122.

Luo, Z.-X., Cifelli, R.L., and Kielan-Jaworowska, Z. 2001. Dual origin of tribosphenic mammals. Nature, 409:53-57.

Luo, Z.-X., Kielan-Jaworowska, Z., Cifelli, R.L. 2002. In quest for a phylogeny of Mesozoic mammals. Acta Palaeontologica Polonica, 47:1-78.

Luo, Z-X., Kielan-Jaworowska, Z., Cifelli, R.L. 2004. Evolution of dental replacement in mammals. Bulletin of the Carnegie Museum of Natural History, 36:159-175.

Luo, Z.-X., Ji, Q., Wible, J.R., and Yuan, C.-X. 2003. An Early Cretaceous tribosphenic mammal and metatherian evolution. Science, 302:1934-1940.

McKenna, M.C. and Bell, S.K. 1997. Classification of Mammals above the Species Level. Columbia University Press, New York, New York.

McKenna, M.C., Kielan-Jaworowska, Z., and Meng, J. 2000. Earliest eutherian mammal skull from the Late Cretaceous (Coniacian) of Uzbekistan. Acta Palaeontological Polonica, 45:1-54.

Novacek, M.J., Rougier, G.W., Wible, J.R., McKenna, M.C., Dashzeveg, D., and Horovitz, I. 1997. Epipubic bones in eutherian mammals from the Late Cretaceous of Mongolia. Nature, 389:483-486.

Patterson, B. 1956. Early Cretaceous mammals and the evolution of mammalian molar teeth. Fieldiana Geology, 13:1-105.

Slaughter, B.H. 1965. A therian from the Lower Cretaceous (Albian) of Texas. Postilla, 93:1-18.

Slaughter, B.H. 1968a. Earliest known marsupials. Science, 162:254-255.

Slaughter, B.H. 1968b. Earliest known eutherian mammals and the evolution of premolar occlusion. Texas Journal of Science, 20:3-12.

Slaughter, B.H. 1971. Mid-Cretaceous (Albian) therians of the Butler Farm local fauna, Texas, p. 131-143. In Kermack, D.M. and Kermack, K.A. (eds.), Early Mammals. Zoological Journal of the Linnean Society, London, UK.

Slaughter, B.H. 1981. The Trinity therians (Albian, mid-Cretaceous) as marsupials and placentals. Journal of Paleontology, 55:682-683.

Szalay, F.S. and Tofimov, B.A. 1996. The Mongolian Late Cretaceous Asiatherium, and the early phylogeny and paleobiogeography of Metatheria. Journal of Vertebrate Paleontology, 16:474-509.

Szuma, E. 2000. Variation and correlation patterns in the dentition of the red fox from Poland. Annales Zoologici Fennici, 37:113-127.

Turnbull, W.D. 1971. The Trinity therians: their bearing on evolution in marsupials and other therians, p. 151-179. In Dahlberg, A.A. (ed.), Dental Morphology and Evolution. University of Chicago Press, Chicago, Illinois.

Van Valen, L. 1962. Growth fields in the dentition of Peromyscus. Evolution, 16: 272-277.