Dating the fossil record

More than 120 fossil genera have been described, some dating back to Cambrian and Precambrian strata.

This fossil diversity contrasts remarkably with the fact that today there are only eight extant genera, including the familiar "mermaid's cup" Acetabularia.

Visit the Gallery of Prehistoric Seaweeds for an overview of marine plants that lived between 700 and 400 million years ago .But what are the ramifications of fossils seeming to occur in multiple, different horizons in the earth’s rock strata?Is the succession of life-forms, over long periods of time, the have provided a variety of alternative explanations for fossil succession.The reality of the geologic column is predicated on the belief that fossils have restricted ranges in rock strata.In actuality, as more and more fossils are found, the ranges of fossils keep increasing.

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These include such mechanisms as the sorting of organisms during the Flood, differential escape of organisms during the same, ecological zonation of life-forms in the antediluvian world (such that different life-forms in different strata reflect the serial burial of ecological life-zones during the Flood), and TABs (Tectonically-Associated Biological Provinces—wherein different life forms occur in successive horizons of rock as a reflection of successive crustal downwarp of different life-bearing biogeographic communities).

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