Isotopes decay at different rates
Uranium-238 half life of around 4.5 billion years
Carbon-14 has a half life of 5,730 years
Radiometric dating of meteorites dates earth.
Evolution evidenced by fossils, rocks, radioactive isotopes, DNA and comparative anatomy.
See “Why evolution is true” Coyne J A Oxford Uni Press
Self-replicating molecules more than 3.5 BYA.
Photosynthetic bacteria 3.5 BYA.
Eukaryotes with a nucleus and chromosomes 1.5 BYA. Sponges, invertebrates and then the earliest chordate, looking like a 30mm long eel, 500 to 600 MYA – grandparent to all vertebrates.
Lobe-finned fish (origin of quadruped) 400 MYA.
Tiktallik – between fish and amphibian, left the water 375 MYA and evolved to become a protoreptile or protomammal about 300 MYA.