You need to check your facts before stating them with such confidence. Have a look at
http://www.modelscience.com/PeriodicTable.html.
Elements with atomic numbers 92 and 94 are uranium and plutonium whch are rare earth elements of the actinide series.
Many of these rare earths don't occur naturally, your point about plutonium being man made has no relevance as to whtehr it's a rare earth element or not.
