( ( ( Back ( to ( Duria ( Antiquior ( Jurassic Plants ) ) ) ) ) ( Unlike today ) ) ( , ( ( ( the ( ( most important ) group ) ) ( of ( plants ( in ( the Jurassic ) ) ) ) ) ( ( were ( the gymnosperms ) ) . ) ) ) )
(ROOT (S (PP (ADVP (RB Back) (PP (TO to) (NP (NNP Duria) (NNP Antiquior) (NNP Jurassic) (NNPS Plants)))) (IN Unlike) (NP (NN today))) (, ,) (NP (NP (DT the) (ADJP (RBS most) (JJ important)) (NN group)) (PP (IN of) (NP (NP (NNS plants)) (PP (IN in) (NP (DT the) (NN Jurassic)))))) (VP (VBD were) (NP (DT the) (NNS gymnosperms))) (. .)))
Back to Duria Antiquior Jurassic Plants Unlike today, the most important group of plants in the Jurassic were the gymnosperms .
(ROOT (S (NP (NNS Conifers)) (VP (VBP are) (NP (NP (DT the) (ADJP (RBS most) (JJ prevalent)) (NN type)) (PP (IN of) (NP (NNS gymnosperms))))) (. .)))