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Williamson, T. E., Brusatte, S. L., Carr, T. D., Weil, A. and Standhardt, B. R. 2012. The phylogeny and evolution of Cretaceous-Paleogene metatherians: New cladistic analysis and description of new early Paleocene specimens from the Nacimiento Formation, New Mexico. Journal of Systematic Palaeontology.
