Guillermo W. Rougie[r], John R. Wible, Robin M. D. Beck, and
> Sebasti[á]n Apesteguía (2012)
The Miocene mammal Necrolestes demonstrates the survival of a
> Mesozoic nontherian lineage into the late Cenozoic of South America.
Proceedings of the National Academyof Sciences (advance online
> publication) > doi:10.1073/pnas.1212997109> http://www.pnas.org/content/early/2012/11/14/1212997109.abstract?sid=c591f8b5-074c-4db5-8d47-e238c84f0eed
Ah, yeah. That was briefly mentioned in a presentation at this year's SVP meeting. Glad to see it's out!
Meridiolestida comprises the South American "dryolestoids". So, *Necrolestes* is like *Peligrotherium*, only more so. :-) Much more so!