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The only chronometric scale applicable in geologic history for the stratigraphic classification of rocks and for dating geologic events exactly is furnished by the fossils.Owing to the irreversibility of evolution, they offer an unambiguous timescale for relative age determinations and for world-wide correlations of rocks.” (Schindewolf, O.This time interval was from 542-520 million years ago.This approach avoids the circularity associated with using fossils to correlate rocks, and then using those correlations to infer biological patterns…” (“Cambrian Explosion: New Timeline for Appearances of Skeletal Animals in Fossil Record,” , Nov.

Scales of stratigraphic disorder may be from millimeters to many meters.

This is supposed to be hard-headed pragmatism.” (O’Rourke, J.

E., “Pragmatism Versus Materialism in Stratigraphy,” , vol. 47.) “One might imagine that direct methods [radiometric dating] of measuring time would make obsolete all of the previous means of estimating age, but these new ‘absolute’ measurements are used more as a supplement to traditional methods [index fossils] than as a substitute.

…And this poses something of a problem: If we date the rocks by the fossils, how can we then turn around and talk about the pattern of evolutionary change through time in the fossil record? 52) “…the record of evolution, like any other historical record, must be construed within a complex of particular and general preconceptions, not the least of which is the hypothesis that evolution has occurred.” (Kitts, David B., , 1979, pp. 67.) “Evolution, at least in the sense that Darwin speaks of it, cannot be detected within the lifetime of a single observer.

353-354.) “A circular argument arises: Interpret the fossil record in the terms of a particular theory of evolution, inspect the interpretation, and note that it confirms the theory. ” (Kemp, Tom, “A Fresh Look at the Fossil Record,” vol. Darwinian theory, however, is supposed to have, in addition to evolution, other less sweeping consequences which are more amenable to observational test. For most biologists the strongest reason for accepting the evolutionary hypothesis is their acceptance of some theory that entails it. The temporal ordering of biological events beyond the local section may critically involve paleontological correlation, which necessarily presupposes the non-repeatability of organic events in geologic history.

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