Ooops. I flipped something around:

>7] Eggs have been on the mammalian menu for a very very long time, since a]
>the avian and reptilian species were established, respectively, before and
>concurrently to the mammals<<snip>>

I meant, "...respectively, concurrently and before the mammals..."

I'd hate for anyone to think I thought the opposite. :)

Cheers,
Kirt