Abstract
AUSTRALIA'S second Mesozoic mammal, Kollikodon ritchiei (Monotremata, Kollikodontidae, new family) has an extreme bunodont molar morphology. The existence of two distinctively different families of monotremes in the Early Cretaceous suggests that the order originated long before the Cretaceous and was very diverse in at least the Australian portion of eastern Gondwana. With four families now known from Australia, it is probable that monotremes originated and diversified in the Australian/Antarctic sector of Gondwana, followed by a single dispersal (ornithorhyn-chid) to the South American sector before or during the early Paleocene. It is probable that kollikodontids are the sister-group of a steropodontid/ornithorhynchid/tachyglossid clade. K. ritchiei and Steropodon galmani are among the largest Mesozoic mammals known.
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References
Murray, P. F. in Vertebrate Zoogeography and Evolution in Australasia (eds Archer, M. & Clayton, G.) 571–583 (Hesperian, Perth, 1984).
Woodburne, M. O. & Tedford, R. K. Am. Mus. Novit. 2588, 1–11 (1975).
Archer, M., Flannery, T. F., Ritchie, A. & Molnar, R. E. Nature 318, 363–366 (1985).
Archer, M., Murray, P., Hand, S. J. & Godthelp, K. in Mammal Phylogeny (eds Szalay, F., Novacek, M. & McKenna, M.) 75–94 (Springer, New York, 1993).
Archer, M., Jenkins, F. A. Jr, Hand, S. J., Murray, P. & Godthelp, K. in Platypus and Echidnas (ed. Augee, M.) 15–27 (Royal Zoological Society of New South Wales, Sydney, 1992).
Pascual, R. et al. Nature 356, 704–706 (1992).
Pascual, R. et al. in Platypus and Echidnas (ed. Augee, M.) 1–14 (Royal Zoological Society of New South Wales, Sydney, 1992).
Rich, T. K., Flannery, T. F. & Archer, M. Alcheringa 13, 85–88 (1989).
Rich, T. K. et al. in Vertebrate Palaeontology of Australasia (eds Vickers-Rich, P., Monaghan, J. F., Baird, R. F. & Rich, T. K.) 1005–1058 (Pioneer Design Studio, Melbourne, 1991).
Jenkins, F. A. Jr Neth. Zool. 4, 5–31 (1990).
Lillegraven, J. A., Kielan-Jaworowska, Z. & Clemens, W. A. (eds) Mesozoic Mammals: The First Two-Thirds of Mammalian History (Univ. California Press, Berkeley, CA, 1979).
Simpson, G. G. Am. Mus. Novit. 390 (1929).
McKenna, M. C. in Phylogeny of the Primates: a Multidisciplinary Approach (eds Luckett, W. P. & Szalay, F. S.) 21–46 (Plenum, New York, 1975).
Every, R. G. A New Terminology for Mammalian Teeth Founded on the Phenomenon of Thegosis (Pegasus, Christchurch, 1972).
Westerman, M. & Edwards, D. in Platypus and Echidnas (ed. Augee, M.) 28–34 (Royal Zoological Society of New South Wales, Sydney, 1992).
Griffiths, M. Echidnas (Pergamon, Oxford, 1968).
Bonaparte, J. F. Nat. geogr. Res. 6, 63–93 (1990).
Rich, T. K. & Rich, P. V. Nat. geogr. Res. 1, 15–53 (1989).
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Flannery, T., Archer, M., Rich, T. et al. A new family of monotremes feom the Creataceous of Australia. Nature 377, 418–420 (1995). https://doi.org/10.1038/377418a0
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DOI: https://doi.org/10.1038/377418a0
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