You were not taught very well. You do not date 68 million year old fossils with radiocarbon dating, as the upper limits of that method are in the 50,000 year range.
The method also is not inconsistent. It is well calibrated against historical documents and artifacts (from Egyptian tombs, for example) and by tree ring dating. The calibration curve for tree rings extends past 12,000 years in 10 year increments.
If you are actually interested, here is a series of good links:
ReligiousTolerance.org Carbon-14 Dating (C-14): Beliefs of New-Earth CreationistsAlso, I do quite a lot of radiocarbon dating, and would be happy to answer any questions you may have.The American Scientific Affiliation: Science in Christian Perspective Radiometric Dating: A Christian Perspective by Dr. Roger C. Wiens.
This site, BiblicalChronologist.org has a series of good articles on radiocarbon dating.
Are tree-ring chronologies reliable? (The Biblical Chronologist, Vol. 5, No. 1)
Tree Ring and C14 DatingHow does the radiocarbon dating method work? (The Biblical Chronologist, Vol. 5, No. 1)
How precise is radiocarbon dating?
Is radiocarbon dating based on assumptions?
Has radiocarbon dating been invalidated by unreasonable results?
Radiocarbon WEB-info Radiocarbon Laboratory, University of Waikato, New Zealand.
You do not date 68 million year old fossils with radiocarbon dating, as the upper limits of that method are in the 50,000 year range.
The method also is not inconsistent. It is well calibrated against historical documents and artifacts (from Egyptian tombs, for example) and by tree ring dating. The calibration curve for tree rings extends past 12,000 years in 10 year increments.
When I was in high school, it was "No dating 'til yer 16!"