Lagerstätten is a word creationists should be familiar with. German for "place, of storage [or] resting place" it refers to a sedimentary deposit extraordinarily rich in the diversity or quality of preservation of its fossils. Paleontologists distinguish two kinds. Concentration lagerstätten are deposits with a peculiar abundance of broken-up hard parts, such as a bone bed.

Rocks exposed in the walls of Grand Canyon testify of the advance of marine waters upon North America during the Flood. How rapid was the advance? What was it like? We may never fully know the answers but there are few places on earth that are better suited for study.

What if all life evolved from a common ancestor by means of gradual changes as Darwin suggested? What evidence would we expect to find?