Douglas, J. G., and Williams, G. W., 1982, Southern polar forests, the early Cretaceous floras of Victoria and their paleoclimatic significance: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 39, p. 171-185.

Dunbar, M. J., 1968, Ecological development in polar regions: Englewood Cliffs, New Jersey, Prentice-Hall, 119 p.

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