The Origin of Novelty

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It has everything to do with DNA. In just the same way that a tasmanian wolf is related to marsupials and not real wolves, two fossils could be vastly different in genotype and deceptively similar in phenotype. They can therefore be mistaken as transitional.

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But the are not deceptively similar in phenotype. Sure, they have 4 legs so are the "deceptively similar" to an elephant? They have forward facing eyes but are the "deceptively similar" to an owl?They are very, very dissimilar. From the bones out they are of different infraclasses.

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For many years, avian systematists classified Old World and New World vultures as close relatives, both thought to be allied to raptors (hawks and owls). However, DNA hybridization suggested that, although Old World vultures are indeed related to raptors, New World vultures are not, but are descendents of common ancestors to storks and cranes (more recent studies are equivocal but still support independent evolution of the two clades). Morphological convergence was strong enough to actually mislead students of bird classification.

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from: http://www.zo.utexas.edu/courses/THOC/Convergence.htmlOf course, that doesn't prove his point but it does show that convergence can be so close it is hard to tell from actual relationships, no?