Fossils do not come with lineage attached. They are evidence of bones, remains. That is it. Everything else is ginned up after the fact.
Except that fossilisation don’t occur less than 10,000 years ago.
You will only find fossils that are older than 10,000 years, and better if they were tens of thousands of years, or better still at hundreds of thousands years or millions of years old.
So time is a factor, if fossilisation occurred.
But fossilisation don’t often occur every single time.
The environment of where the fossils are found, are also factors. For instance, where the animals died, and if the areas formed into layers of rocks (more often occurring where sedimentary rocks formed) would assist body (mostly bones and teeth) in permineralisation.
The area where the bodies laid, have to turn into rock as well. Bodies are normally found in the layers of sedimentary rocks. That’s even more important than time.
Say some skeletal remains of something died about a million years ago, only half buried for all that time in silt (soil). There are no way for fossilisation occurring in such a condition.
If the layer of silt didn’t form into mudstone or shale (sedimentary), then it is not possible for the remains to turn into fossils.
If you buried a person in tomb, like a cave, for instance, and the remains not found a million years later, fossilisation will never occur.
If you were to believe the story of Noah, and there were mass extinction, in less than 4500 years ago, to be all true, then fossilisation would not occur to any man, animal or plant, because 4500 years is far too short a time for mass fossilisation to occur.
Some of more ignorant creationists actually believed that dinosaurs were all killed by Noah’s Flood, less than 4500 years ago.
According to these absurdly ignorant creationists, they actually believed that Noah’s ancestors, such as Adam, Seth, Enoch and Lamech have all walked with dinosaurs.
At no stage were any fossil of dinosaur found with any human remain. No fossil remains of dinosaurs ever found dated to 4500 years ago.
And you wouldn’t use radiocarbon (C-14) to date rocks or fossils as old as the dinosaurs. The most common dating methods used are uranium-lead (U-Pb) dating method or potassium-argon (K-Ar) dating method; both of these are very reliable for dating rocks or fossils that are older than 1 million years old.
U-Pb dating have even a greater half-life than K-Ar, capable of dating rocks and minerals that are billions of years old.
Only idiot creationists would think palaeontologists would only use radiocarbon dating for all dating purposes. Palaeontologists have already known that (C-14) dating anything older 50,000 years would become increasingly unreliable and inaccurate, hence they would either use U-Pb or K-Ar instead of C-14.
What I find funny is that creationists always focused on the limitations of C-14 dating, and always ignored other dating methods, like K-Ar and U-Pb. Or they would ignore Luminescence dating, or the ice core samples (the oldest ice core discovered is 2.7 million years old, which is older than oldest Homo sapiens of 200,000 years old).