[Elsie]

 

Order Monotremata

This is a small and unique order of mammals placed by themselves in the subclass Prototheria. There are only 3 living species of monotremes — one species of duck-billed platypus and two species of echidna. Very little is known about them from the fossil record.

(From here --> http://www.angelfire.com/mo2/animals1/mammal/monotreme.html )

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Truth is violated by falsehood,
 but it is outraged by silence.

[MineralMan]

Old information. Here's a site with more info on the fossil data for the monotremata. Don't rely on a single web site for this sort of thing. There's more than you think.

http://www.ucmp.berkeley.edu/mammal/monotremefr.html

[Quark2005]

Very little is known about them from the fossil record.

This says nothing about evolution, only that there are few monotreme fossils. Fossil evidence is not the only line of support for evolution, it is only one of many.