Just so there's no confusion

https://toast.ooo/post/12364736

Even if you’re talking about chicken eggs specifically it’s still the egg first. The first chicken egg would have been laid by a proto chicken
I don’t think It’s that clear, are eggs named by what created them, or what they contain? I could certainly see an argument that the first chicken hatched from a proto-chicken egg
I always love to bring up that this boils down to an argument about definitions, given the assumption we’re talking about chicken eggs.