Sources for evolution of flowering plants: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2148295/
http://www.sciencedirect.com/science/article/pii/S0169534799018169
Sources for evolution of placental mammals:
http://www.nature.com/nature/journal/v392/n6679/abs/392917a0.html
http://www.ncbi.nlm.nih.gov/pubmed/21866158