Marsupial Origins

@article{Cifelli2003MarsupialO,
  title={Marsupial Origins},
  author={Richard. Cifelli and Brian M Davis},
  journal={Science},
  year={2003},
  volume={302},
  pages={1899 - 1900}
}
TAXONOMY AND AFFINITIES OF AFRICAN CENOZOIC METATHERIANS
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Evolutionary Associations of Endosymbiotic Ciliates Shed Light on the Timing of the Marsupial–Placental Split
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Do Developmental Constraints and High Integration Limit the Evolution of the Marsupial Oral Apparatus?
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The Placentation of Eulipotyphla—Reconstructing a Morphotype of the Mammalian Placenta
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