There is no possible genetic determination of fossil species for one very good reason:
WE DO NOT HAVE DNA FROM THESE FOSSIL SPECIES Stop playing ring around the rosie. We have gone over this numerous times already.
Yes, and we will continue to do so until you learn how biological science actually works. It is not an impediment to science that it has to infer history from presently available facts. What was once a species, is now often a family or phylum, examples of which are extant. That is a lynchpin point of Woese's work. & further, that is why it is important to understand how homology and morphology ring back and forth against each other to establish details of the early branches of the tree of life. Since you obviously found it boring to even try to do the homework I offered, I suggest we move on to something else.
Insults do not help you. The fact is that you cannot genetically examine genetic material which does not exist. The only evidence evolutionists have of these millions of years old creatures is the bones and little else. So you cannot look at any genetic evidence. All you have to look at in 99.99% of the cases is bones - and 99% of the time just a very small portion of the total skeleton of the animal in question. So don't tell me they are working on this through genetics. All they have is appearances and appearances are not enough.