Well then quote from your favorite journal and provide an example of a dinosaur (or something) that was dated by multiple independent methods
Actually no problem. In Japan there are lakes that have at least tens of thousands of annual deposits called lamela. The lemela are being deposited annually now the same way they have been deposited for tens of thousands of years. The age of each lamela can be independently dated simply by counting the layers and any fossils in each layer. The use of radiocarbon dating has confirmed the observed date based on counting the individual layers, and the fossils they contain.
From: 'Time-capsule' Japanese lake sediment advances radiocarbon dating for older objects
A series of radiocarbon measurements from Japan's Lake Suigetsu will give scientists a more accurate benchmark for dating materials, especially for older objects. Researchers extracted cores containing organic material from the bottom of the Japanese lake where it had lain undisturbed for tens of thousands of years. They provide a more precise way to examine radiocarbon ages of organic material for the entire 11,000-53,000-year time range.
There are a number of lakes around the world where this has been done.