If we had such a smooth blend from one kind to another that this law was not violated then we wouldn't even be able to tell one kind from another.
400THz his the frequency of red light. There is a smhoth transition (the smoothest transition physically possible, in fact) from red to violet at 790THz.
Either
a) You cannot tell one colour from another
b) You can tell me where the line between colours definitely is and justify why it is there and not 100mHz less.
Maybe I missed it but did anyone reference a web-site that is rich with pictures of the evolution of the skeletal system after fish hit the land? I'm not interested in broad assertions.
Not a fan of doing your hard work for you. Why not check out
Panderichthys
Sauripterus
Elginerpeton
Tiktaalik
Obruchevichthys
Hynerpeton
Densignathus rowei
Ichthyostega
Acanthostega
Pederpes finneyae
Amniator
Or perhaps read some paleontology papers. It is rare to find all the information you want all in one place, even in the age of information so you'll have to do some work. Probably take you at least a few years to learn the skills to research and comprehend the raw evidence, I'm afraid.
Or you could look to the people that have already spent the time doing all of that and see what they say about it all.
Or alternatively you could assume that you are more competent in the subject than those that have trained for years upon years and suggest that 'common sense' trumps them. In which case, I look forward to seeing your 'common sense' self-built house. Your 'common sense' plumbing, 'common sense' electrical wiring and seeing you perform 'common sense' surgery on your loved ones.