The global adaptive convergence of subterranean mammals currently involves 3 orders: rodents, insectivores and marsupials. These include 11 families, 50 genera, and several hundreds of species. This global evolutionary process followed the stepwise climatic cooling and drought followed by biotic extinction in yhe transition from the middle Eocene to the early Oligocene, a period of 10 milion years (35-45 Ma = milion years ago) of profound change in earth geology, climate and biota. The earth changed from the Mesozoic "hot house" to the Neogene (Miocene to Present) "cold house", ie from a warm, equable, mostly subtropical world that persisted from the Mesozoic to the beginning of the present glaciated world.
Apr 28, 2015
Sep 3, 2012
|Mammalian evolution underground. The ecological-genetic-phenetic interfaces||Apr 28, 2015|
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