chicken or the egg?

The age old question "Which came first, the chicken or the egg?"

According to the fossil record, it is believed that birds
come from dinosaurs. Findings in China and
elsewhere show some dinosaurs with early feathers...
as in the image, right.

that as most reptiles lay eggs and some of the earlier
ones—ie some dinosaurs—'became' birds, the egg
(definitely) preceded the chicken.