( ( Permian fossils ) ( ( have ( been ( ( found ( in ( ( the ( topmost beds ) ) ( of ( the Tensleep ) ) ) ) ) ( at ( ( some localities ) ( in ( ( ( ( ( ( Washakie Range ) , ) ( Owl ( Creek Mountains ) ) ) , ) and ) ( southern ( Bighorn Mountains ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Permian) (NNS fossils)) (VP (VBP have) (VP (VBN been) (VP (VBN found) (PP (IN in) (NP (NP (DT the) (JJ topmost) (NNS beds)) (PP (IN of) (NP (DT the) (NNP Tensleep))))) (PP (IN at) (NP (NP (DT some) (NNS localities)) (PP (IN in) (NP (NP (NNP Washakie) (NNP Range)) (, ,) (NP (NNP Owl) (NNP Creek) (NNPS Mountains)) (, ,) (CC and) (NP (JJ southern) (NNP Bighorn) (NNPS Mountains))))))))) (. .)))
Permian fossils have been found in the topmost beds of the Tensleep at some localities in Washakie Range, Owl Creek Mountains, and southern Bighorn Mountains.
(ROOT (S (NP (NNS Scientists)) (VP (VBP know) (SBAR (IN that) (S (NP (DT some) (NNS mountains)) (VP (VBD were) (ADVP (RB once)) (PP (IN at) (NP (NP (DT the) (NN bottom)) (PP (IN of) (NP (DT an) (NN ocean))))) (SBAR (IN because) (S (NP (JJ marine) (NNS fossils)) (VP (VBP have) (VP (VBN been) (VP (VBN found) (PP (IN on) (NP (NP (DT the) (NNS peaks)) (PP (IN of) (NP (DT some) (NNS mountains)))))))))))))) (. .)))