In his 2006 re-evaluation , Carpenter examined the paleobiology of giant sauropods , including Amphicoelias .
In his 2006 re-evaluation , Carpenter addresses the question of why this group attained such a huge size .
In his 2006 re-evaluation , Carpenter examined the paleobiology of giant sauropods , including Amphicoelias , and addresses the question of why this group attained such a huge size .