( ( ( ( 250 million ) years ) ago ) ; )
(ROOT (FRAG (ADVP (NP (QP (CD 250) (CD million)) (NNS years)) (RB ago)) (: ;)))
250 million years ago;
(ROOT (S (NP (NNP Pangaea)) (VP (VBD began) (S (VP (VBG breaking) (ADVP (RB apart)) (ADVP (NP (QP (CD 250) (CD million)) (NNS years)) (RB ago))))) (. .)))