The weakness of evolutionary theory can be demonstrated by the tautologies and circular reasoning that is employed to provide “evidence” for large scale evolution.
(Welles, Samuel Paul, “Paleontology,” In some cases darwinists have recognized circularity as a typical problem in evolutionary models and worked to avoid it.
“To test this idea, we matched earliest Cambrian records of carbon isotope variability from Siberia, Mongolia, and China with a Moroccan record constrained by five radiometric ages from interbedded volcanic ashes.
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.
10, 2010.) “In about 1830, Charles Lyell, Paul Deshayes, and Heinrich George Bronn independently developed a biostratigraphic technique [geologic column] for dating Cenozoic deposits based on relative proportions of living and extinct species of fossil mollusks….
Strangely, little effort has been made to test this assumption.
This failure leaves the method vulnerable to circularity.” (Stanley, Steven M., Warron O.
Addicott, and Kiyotaka Chinzei, “Lyellian Curves in Paleontology: Possibilities and Limitations,”, vol. 422.) “Often, the layers of rock can be dated by the types of fossils they contain….
Scientists have determined the relative times of appearance and disappearance of many kinds of organisms from the location of their fossils within the sedimentary rock layers.” (Glenco, 1994, pp. 714.) “The procession of life was never witnessed, it is inferred.