You are foaming at the mouth about abiogenesis. Abiogenesis is not part of the theory of evolution. Sorry to disappoint you. The theory of evolution applies equally well if a deity created the first life. Many who call themselves Christians (I believe that you disagree with their right to that title) disagree with you, and accept the overwhelming evidence supporting evolution following initial life that they believe was created by God.
Not really good enough, Thatcherite.
If you are willing to admit that the Law of Biogenesis demands the Intelligent Design of the First Living Cell, then there's really no reason to prefer Random Evolution thereafter as opposed to the Intelligent Design of every successive living cell (whether singular, or in organizational combination -- i.e., multicellular organisms or "plants and animals").
Creationists are certainly willing to admit that all of these fossil-recorded species did exist, in antiquity. However, as I said -- the point is, once you're willing to admit the Intelligent Design of the First Living Cell, there remains no inherent reason to favor the notion of Random Evolution over the possibility of Intelligent Design for every Living Species thereafter.
Great fun was had by all. Vade only managed to FUBAR the entire Phylogenetic Column by way of his response (but I don't think he'll soon again forget that Mammalia is an entirely different Class of Phylum Chordata than that of Avia!!)
These ancient, now-extinct species did exist? Yes. The Fossil Record proves as much.
They evolved, one-to-another? Ah, that's another question entirely.
If you are willing to admit the possibility that an Intelligent Designer directly-created the First Living Cell... then why not all of them?