[In the highly probable event that you did not search to see what Tiktaalik, Ambulocetus, and Archaeopteryx all share in common, I will tell you; They are all transitional species leading to amphibians, whales, and birds respectively.]

a big call,using fancy greek/latin words to define arbitrary intermediates ,such imaginings do nothing for the truth seeker,they appear to be lonely exceptions to a consistent pattern of fossil disconfirmation, in your mind a few poor candidates for ancestor status are enough to save a theory that presumes a worldwide history of continual evolutionary transformation, such thinking can only appeal to the most limited and stunted of minds