( ( Of course ) ( , ( ( as ( you ( know already ) ) ) ( , ( ( lots ( of vertebrates ) ) ( ( share ( in ( having ( ( ( ( ( ( a ( segmented ( ` ( backbone ' ) ) ) ) , ) or ) ( ( vertebral column ) ( made ( of bone ) ) ) ) , ) ( ( from which ) ( ( the group ) ( gets ( its name ) ) ) ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (PP (IN Of) (NP (NN course))) (, ,) (SBAR (IN as) (S (NP (PRP you)) (VP (VBP know) (ADVP (RB already))))) (, ,) (NP (NP (NNS lots)) (PP (IN of) (NP (NNS vertebrates)))) (VP (VBP share) (PP (IN in) (S (VP (VBG having) (NP (NP (DT a) (JJ segmented) (`` `) (NN backbone) ('' ')) (, ,) (CC or) (NP (NP (JJ vertebral) (NN column)) (VP (VBN made) (PP (IN of) (NP (NN bone))))) (, ,) (SBAR (WHPP (IN from) (WHNP (WDT which))) (S (NP (DT the) (NN group)) (VP (VBZ gets) (NP (PRP$ its) (NN name)))))))))) (. .)))
Of course, as you know already, lots of vertebrates share in having a segmented 'backbone', or vertebral column made of bone, from which the group gets its name.
(ROOT (S (NP (NNP Backbone)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (DT the) (JJ vertebral) (NN column))))) (. .)))
Backbone is another name for the vertebral column.