Ostrich, 40 million years
The ancestors of ostriches come from birds today known as Palaeoits. The oldest fossils were discovered in the 1930s in central Europe, which showed they have been on Earth for about 40 million years. However, the fossil records of modern ostriches date 20 to 23 million years ago.
You are right Amos, everything was created in 7 days by a magic man in the sky.
Carbon dating is not relevant here since it only can date thing that are 50000 years or younger. There are other methods for older things. The theory of evolution makes sense and can explain a lot of the observations that have been done by scientists.