methinks quetzal misrepresented S1WCs. S1WCs was saying that, because the platypus has bird, reptile, and mammal features we should accept it as a transtional of all three, somehow (I think) ending up making it the ancestor of modern reptiles, birds, and mammals.
Which is patently false--there are no bird features in platypus to begin with. Second, reptiles were around before the earliest synapsids. Third, it's not even the ancestor of all modern mammals--it's just a branch of modern mammals that shares a common ancestor with us. yeah . . .
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