( One ( ( ( can actually ) ( ( ( go ( to ( the ( appropriate ( geological strata ) ) ) ) ) and ) ( find ( fossils ( of ( ( the animals ) ( that ( lived ( at ( that ( time period ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP One)) (VP (MD can) (ADVP (RB actually)) (VP (VP (VB go) (PP (TO to) (NP (DT the) (JJ appropriate) (JJ geological) (NN strata)))) (CC and) (VP (VB find) (NP (NP (NNS fossils)) (PP (IN of) (NP (NP (DT the) (NNS animals)) (SBAR (WHNP (WDT that)) (S (VP (VBD lived) (PP (IN at) (NP (DT that) (NN time) (NN period)))))))))))) (. .)))
One can actually go to the appropriate geological strata and find fossils of the animals that lived at that time period.
(ROOT (S (NP (NP (DT The) (NN presence)) (PP (IN of) (NP (NP (DT an) (NN animal) (NN fossil)) (PP (IN in) (NP (DT a) (NN rock)))))) (VP (VBZ gives) (NP (NP (NN evidence)) (PP (IN of) (NP (DT the) (NN time) (NN period)))) (NP (NP (DT the) (NN animal)) (VP (VBN lived) (PP (IN in))))) (. .)))
The presence of an animal fossil in a rock gives evidence of the time period the animal lived in.