Well, I’ve explained before how ppl conclude ‘old ages’ for things like tree rings, ice cores, radiometric dating...which boils down to Assumptions.
Assuming tree rings and ice core layers are annual, despite observational science which demonstrates otherwise...Likewise with radioactive decay rates and other assumptions related to radiometric dating techniques.
https://www.icr.org/article/excess-argon-archilles-heel-potassium-argon-dating/
As for fossil ‘organization’ ...Here:
http://www.creationscience.com/onlinebook/Liquefaction5.html
*****liquefaction*****
....simply sorted organisms based on their already existing natural variations, Darwin’s explanation is irrelevant.
Two Faulty “Principles.” Early geologists learned that fossils found above or below another type of fossil in one location were almost always in that same relative position, even many miles away. This led to a belief that the lower organisms lived, died, and were buried before the upper organisms. Much time supposedly elapsed between the two burials, because sediments—at least today—are usually deposited very slowly. Each horizon became associated with a specific time, perhaps millions of years earlier (or later) than the horizon above (or below). Finding so many examples of “the proper sequence” convinced early geologists they had found a new principle of ***interpretation***, which they soon called the principle of superposition.
Evolutionary geology is built upon this and one other “principle,” the principle of uniformitarianism, which states that all geological features can be explained by today’s processes acting at present rates.22 For example, today, rivers deposit sediments at river deltas. Over millions of years, thick layers of sediments would accumulate. This might explain the sedimentary rocks we now see.
After considering liquefaction, the flaws in both “principles” become obvious. Sediments were sorted and deposited throughout a tall liquefaction column almost simultaneously by a large-scale process not occurring today. (These “principles” are really ***assumptions.***Calling them “principles” gives them undeserved credibility.)
So Yes, Giant creatures lived all at the same Time.😎