Walking sharks, can land sharks be more than a couple hundred million years away?

[Moontanman]

This video shows a shark that walks with it's fins as well as any bony fish and better than some amphibians.

 

I would like to speculate on the possibility that this is close to the way land vertebrates developed but would a animal like a shark be able to make the move to land since it lacks a bony skeleton.

 

Also does this say anything about how many limbs a vertebrate can evolve or is the number of legs too closely connected basally to our genetics for there to be more than four?

 

[EdEarl]

There are more than enough sharks walking on land today; one was a wall street insider, now in prison.

Edited September 1, 2013 by EdEarl