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Re: dinosaur copulation?



> 
> It is hard to imagine how the larger genera, such as Brachiosaurus or Seismo-
> saurus, could have mated without crushing the female's spine. Is it possible
> that the eggs were laid first, and then fertilized, similar to what fish do?

Very doubtful, dinosaur eggs (the shell is produced in within the body).
It is possible that sauropods may have only mated when they were
sub-adults and stopped mating after they reached a certain size or weight.
Another possiblity is that sauropods may have used the bouyance of water to
aid in mating (sauropods in water are nearly weightless, they do float).

---John Schneiderman <dino@cwis.unomaha.edu>