( ( ( Paleozoic ( The ( geological era ) ) ) ( ( ( beginning ( ( ( 590 million ) years ) ago ) ) and ) ( ending ( ( ( about ( 250 million ) ) years ) ago ) ) ) ) . )
(ROOT (NP (NP (JJ Paleozoic) (DT The) (JJ geological) (NN era)) (VP (VP (VBG beginning) (ADVP (NP (QP (CD 590) (CD million)) (NNS years)) (RB ago))) (CC and) (VP (VBG ending) (ADVP (NP (QP (RB about) (CD 250) (CD million)) (NNS years)) (RB ago)))) (. .)))
Paleozoic The geological era beginning 590 million years ago and ending about 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))))) (. .)))