I understand what paleontologists have written about! Their recordings of what they actually observe in the fossil record!
Niles Eldredge who is still alive is an American biologist and paleontologist Chief Curator at The American Museum Of Natural History (Reinventing Darwin) p.3: "Simple extrapolation does not work. I found that out back in the 1960s as I tried in vain to document examples of the kind of slow, steady directional change we all thought ought to be there, ever since Darwin told us that natural selection should leave precisely such a telltale signal as we collect our fossils up cliff faces. I found instead, that once species appear in the fossil record, they tend not to change much at all . Species remain imperturbably, implacably resistant to chance as a matter of course."
That can be explain by the order in which they were buried due to there location of their habitant in a worldwide flood! After all the most common way fossils are formed are by living organisms being buried in wet sediment deposited by water before scavenging or decomposition and the vast majority of fossils are marine creatures!
Tiktaalik is described as being "technically a fish, complete with scales and gills"!
https://evolution.berkeley.edu/evolibrary/news/060501_tiktaalik
In one video "Finding Tiktaalik" Neil Shubin co-discoverer of tikaatik states “we were running out of money” in Canada and "this was our last chance". After looking for, what he says, was 20 yrs elsewhere then 6 yrs in Canada and not finding any intermediates, they were looking in a hill, he noted, that was "loaded with fossils" they found (one) that they claim is an intermediate fossil...tikaatik? As Darwin himself stated there should be a "truly enormous" amount of intermediate links but even he admitted he did not observe them! It is a believe that tikaatik is just a fish that was compressed from the top down creating this (one) and only unusual fossil because it is as flat as a pancake!
Feathered theropods are a fiction! There is no such thing as feathered dinosaurs only outlandish claims of such like this misleading headline from
smithsonianmag. com "(Scientists Discover a Gigantic Feathered Tyrannosaur)"
They walk back the feathered claim in the article “we know that much of this dinosaur’s body was covered in fine, wispy feathers. These were not flight feathers or down that you might see on a modern bird, but simpler structures best described as dino-fuzz" In one study this dino fuzz is described as degraded collagen fibres! Further stating "The proposal that these fibres are protofeathers is dismissed"