Originally posted by sonhouse
In other words, just ignoring the C14 argument because you HAVE no counter argument.
C-14 radiometric dating can sometimes be somewhat accurate for plants and land animals. However, there are certain assumptions and limitations.
One of the implied assumptions in radiocarbon dating is that levels of atmospheric carbon-14 have remained constant over time. This turns out not to be exactly true, and so there is an inherent error between a raw "radiocarbon date" and the true calendar date.
The older the object, the less carbon-14 there is to measure. Radiocarbon dating is therefore limited to objects that are younger than 50,000 to 60,000 years.
Radiocarbon dating is also susceptible to contamination by water and carbon. If the ground in which an object is buried contains particles of coal or other ancient sources of carbon, radiocarbon testing may indicate that the object is far older than it really is.