It is a marvellous position that allows SD to ignore the evidence. If two fossils are extremely similar then he can say that they are the same species. If they are different he can say, "They are just different species. Where is your proof that they are related?" All the while ignoring the strata they are found in, the fact that they can be arranged in sequences of gradual change that fit with those strata and their geographical location, the fact that successful predictions are made of findings ahead of time, etc, etc, etc.
Well, you certainly called that one.