I have explained excessively why in this particular discussion, to prove common descent, only a finely graduated chain will work.
Then you have explained only your ignorance of several fields of science.
All...repeat...ALL other arguments no matter how cleverly presented are rooted in similarity arguments.
Repeat it all you need to - it is still naive and disingenuous. You keep ignoring - probably purposefully - context.
Again similarity can just as easily mean common creator as it can mean common ancestor.
So you keep claiming.
Tell us all about how your constrained creator made sharks and dolphins and mesosaurs.
Therefore if you are going to ever convince me that common ancestry is a superior theory to a common creator you must... repeat...MUST present me with at least one example of a finely graduated chain of fossils leading from one major form to another -->.<--
WHY????
Did you not understand ANYTHING I wrote? Are you this dense in real life, or only when discussing your precious tribal creation myths?
A reminder as to what you just ignored in order for your naive, ignorance-based fantasy to have merit:
WHY do you think you
should see such a thing?
In order for your position to be valid, we should expect:
1. ALL things that lived had to have fossilized in sufficient numbers that finding them is a reasonable expectation
2. Once the fossils are formed, they should remain in situ, undisturbed, unaffected by geological forces for all time
3. a human should actually have already found them all, examined and classified and catalogued them
4. all physical changes MUST proceed by small gradations
5. all developmental genetic modules must only affect physical features such that any changes occur via small increments
Can you provide a rationale and justification for ANY of those?
As I have presented to you previously - a prime example of how a change in a gene involved with development can make, by your standards, a large leap in a single generation - a mutation in the FGFR-3 gene in humans produces an achondroplastic child - a child with dwarfism. And as I have explained, dwarfism is NOT just being short, but it involves alterations to limb length and proportions, alterations to the cranial skeleton, loss of interphalangeal joints, etc.
All in 'one leap', all at once, in one generation, because of a single point mutation. AND achonroplastic people can reproduce with normal phenotype humans, and some of their offspring will be achondroplastic.
So, let's look at your sail backed dinosaur claim - can you guarantee the following:
1. ALL sail backed dinosaurs and their ancestors fossilized
2. ALL of these fossils have been found
3. It has been shown that there is no developmental genetic process that could have produced the sail in a short period of time
I'm guessing not? So the real question is, what, exactly, are you premising your argument on?
Tell me about the time you SAW a mutation in the FGFR-3 gene occur, then tell me all about how you SAW how this altered embryonic and fetal development.
No, you don't need a PhD in genetics or paleontology, but it would help if you bothered to try to understand the subjects a little bit before making grand pronouncements in the fields.
It would also help if you held your own position to the same standards you hold everything else. Funny how creationists never, ever, do that.
If evolution was totally, 100% refuted this very day, bible-style creation would STILL be a myth with ZERO actual evidence in its support.
Clearly, you think you have a major 'gotcha' for evolution. Clearly, you think your demands must be met. Clearly, you have foolishly hung your hat on this 'argument' of yours having merit, lest your 'faith' be demolished.
And that is YOUR problem, nobody else's.
Learn some genetics and development. Learn some taphonomy. THEN make an argument.