Re: rearing sauropods

["David Marjanovic" <david.marjanovic@gmx.at>]

> Every gen[us] of diplodocid has a different neck length, why if
> they all eat from tree tops? Wouldn't they want to have a neck the same
> length?

This would lead to severe interspecific competition -- exactly amonng so
many species of tree browsers different neck lengths should be expected.

> With the majority of weight around the hips would also make it easier for
> the animal to walk, and turn for that matter.

Why?
Anyway, it would also make it easier to rear, no?

> Your right, tall neural spines doesn't equate to bipedal standing in
> diplodocids. Look at Ornithopods, many have tall neural spines over the
hip.
> In Shantgosaurus the front of the pelvis has short spines while the back
has
> the tallest and goes onto the tail (also Kritosaurus), Lambeosaurus have
> tall neural spines from front to back in the pelvic area, while the
> hadrosaurs have short spines but some got really big.

Weren't they all some sort of semibipedal?