( ( ( The ( earliest ( geological period ) ) ) ( of ( ( ( ( the ( Paleozoic era ) ) , ) ( the Cambrian ) ) , ) ) ) ( ( ( ( ( takes ( its name ) ) ( from ( the ( Cambrian Mountains ) ) ) ) , ) ( where ( geologists ( first ( identified ( Cambrian remnants ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJS earliest) (JJ geological) (NN period)) (PP (IN of) (NP (NP (DT the) (JJ Paleozoic) (NN era)) (, ,) (NP (DT the) (NNP Cambrian)) (, ,)))) (VP (VBZ takes) (NP (PRP$ its) (NN name)) (PP (IN from) (NP (DT the) (NNP Cambrian) (NNPS Mountains))) (, ,) (SBAR (WHADVP (WRB where)) (S (NP (NNS geologists)) (ADVP (RB first)) (VP (VBD identified) (NP (NNP Cambrian) (NNS remnants)))))) (. .)))
The earliest geological period of the Paleozoic era, the Cambrian, takes its name from the Cambrian Mountains, where geologists first identified Cambrian remnants.
(ROOT (S (NP (NP (DT The) (JJ first) (NN period)) (PP (IN of) (NP (DT the) (JJ paleozoic) (NN era)))) (VP (VBD was) (VP (VBN called) (NP (NN cambrian)))) (. .)))