Question

-why when examining the morphology of fossils do those towards the surface become progressively more like the organisms living on the planet today?

Answer 1

Typically, the species is outlined in the morphology it's, not on the biology and behavior that's per the biological species conception. And once we use morphology, geologists and biologists are a lot of on an equivalent level, except that the biologists have soft elements furthermore as onerous elements to figure with. However, there are issues even for biologists operating with living organisms.

Although these exceptionally preserved fossil assemblages are generally troublesome to reconcile with modern phyla, examination of the morphology, ecology, and taphonomy of those taxa provides keys to their relationships with modern taxa.