No! I already know this explanation but I was asking if "prediction" is authentic evidence for you (since you said it I thought you might clarify).
ah I see

. Sorry for the long post, just felt like speaking, you dont have to read if you dont want to...
Well. The thing is, there are many questions like these, that young earth views, just cannot explain. And that is sincerely the truth. Aside from biases and pre dispositions...if you compare old earth science against young earth science, young earth science cannot compete.
So, ok so maybe many of us arent opposed to an old earth. The bible, as far as im aware, doesnt clarify on its age, so many people may adopt old earth views as a better explanation on scientific grounds. But the problem comes when old earth science, is so well intertwined with other fields of science, including biology that in recognizing an old earth, we inevitably find ourselves in a position in which we recognize the existence of the fossil succession.
We cant have an old earth without the fossil succession because the science that defines geology, is the same science which defines fossil succession. And so, just as someone can know about rocks and predict where rocks will be found, so too can they predict where animals within them will be found. And this is just the reality of how paleontology works and is a common practice. I was doing some research not too long ago and literally, there was a new roadcut, dynamite exposed new rock up the road from me. But before even looking at the rock, you know what fossils will be in it by the nature of understanding the rock. That means understanding, where in the "rock succession" the rock is. Is it ordovician? Silurian? Devonian? Ok, what formation? Upper, lower? if we follow laws of superposition, where will this rock be? Ok, we found the rock. Then, you look closer. Is it terrestrial rock? Is it rock that land animals would walk on? Well, it may have features of terrestrial rock or marine rock, it may be of sandstone (typically sandstones form in sandy environments, like beaches and terrestrial environments), or limestone (carbonaceous deep marine rock) or is it siltstone (shallow marine)? Is it igneous (volcanic rock, maybe felsic, maybe mafic)? Is it metamorphosed sedimentary rocks? Ok, so what we have is a siltstone of this particular formation, alright...you can go further. Is this rock near a historic shoreline? Is it a lake deposit? Often there are stream beds observable in rock where you can see that theyve meandered for thousands of years. You can use structural re-positioning to figure out where the river was flowing and you can follow it. Just like a three dimensional puzzle you can rebuild earth history if you know what to look for.
So, you go through and just by looking at the rock, you look closely at what the rock is made of, and you can understand with great precision, where that rock came from. Ok, its a shallow marine environment, its coastal. Ok, now you can lay the prediction, what animal would likely live here? Well, depending on the age of the rock, if its pre devonian, youre probably going to find invertebrates.
The people who found tiktaalik knew this before they got their helicopter to canada. They knew exactly where they were going, they knew exactly what rock they needed to get into. Tiktaalik (multiple tiktaaliks were found, a formation of them), tiktaalik wasnt found just sitting in the open. They dug at least 10 feet to get to freshwater strata. And then, they found tiktaalik. And actually, theyre back in antarctica right now looking for more. So stay tuned in the next year or two for the next transitional.
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Theres a lot to it, and it really takes time to go through the steps of doing it, but when you do, it does produce.
So is it authentic? Not sure how we are defining the terms, but it is compelling and the predictive power behind the fossil succession is second to none. And, its common practice to make these predictions, but also, the fossil succession was built just by people who know about rocks. Before Darwin even presented evolution, geologists were already confirming the geologic principals of today. Superposition, law of inclusions, cross cutting relations, original horizontality etc., principals firmly grounded in physics and chemistry.
The fossil succession is fundamentally grounded in physics, chemistry geology and biology. And it is no less authentic than any of these fields, because it was produced by them.
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I must add that the founders of modern geology and the fossil succession, were Christian, and the founding fathers of these discoveries, often attributed their discoveries to our Lord and Savior. All praise is to Him.