The Rev. Joseph Townsend published a decent amount of William Smith’s geological work in a book entitled The Character of Moses Established for Veracity as an Historian Recording Events from the Creation to the Deluge. And Smith was rather late in accepting and had to be convinced by the clergy that he worked with (like Townsend) that his results implied an old earth.
He’s overdrawing that a bit–yes, transitional fossils are rarer than one would expect if all change were at a steady pace (a la Lamarckianism), but they’re still there, as I have said about five times, I’ve found over a dozen of them myself, and with a bit of hunting, could list a few hundred more.
Ecosystem elevation is a really bad match for depositional order–Cuvier figured that out, and he was strongly opposed to evolution (yes, he had some issues in his views like cyclical history, but he didn’t like the “evolution” of the day. i.e. Lamarkianism). I can tell that it’s not accurate, and have pictures of sites that prove that that is not a realistic description.
And as to “knowing more about the reality in the field”, just how much paleontological field work have you (or anyone affiliated with your sources) done?
Given how incredibly difficult it is to get any significant funding for research on things that aren’t vertebrates and aren’t medically relevant, I don’t think there’s much of a disadvantage.
How much funding I or my collaborators have received for research on fossil mollusks: <$50,000 over the course of 50 years of research (of course, I haven’t been around for all of that), and basically all of that has gone towards paying for travel expenses, equipment, and printing costs for papers.