The earliest fossilised trees date to 386 million years ago in the Devonian period. They have been found at an abandoned quarry in Cairo, New York. The forest was so vast it originally stretched beyond Pennsylvania.
ð ɪ WORD_BOUNDARY ɜː l ɪ ɪ s t WORD_BOUNDARY f ɑ s ə l aɪ z d WORD_BOUNDARY t ɹ iː z WORD_BOUNDARY d eɪ t WORD_BOUNDARY t ə WORD_BOUNDARY θ ɹ iː h ʌ n d ɹ ɪ d WORD_BOUNDARY eɪ t i WORD_BOUNDARY s ɪ k s WORD_BOUNDARY m ɪ l iə n WORD_BOUNDARY j ɪ ɹ z WORD_BOUNDARY ʌ ɡ oʊ WORD_BOUNDARY ɪ n ð ə WORD_BOUNDARY d ɛ v oʊ n iə n WORD_BOUNDARY p iə ɹ ɪ ə d WORD_BOUNDARY ð eɪ WORD_BOUNDARY h ʌ v b ɪ n WORD_BOUNDARY f aʊ n d WORD_BOUNDARY æ t WORD_BOUNDARY ʌ n WORD_BOUNDARY ʌ b æ n d ə n d WORD_BOUNDARY k w ɔ ɹ i WORD_BOUNDARY ɪ n WORD_BOUNDARY k aɪ ɹ oʊ WORD_BOUNDARY n uː WORD_BOUNDARY j ɔ ɹ k WORD_BOUNDARY ð ə WORD_BOUNDARY f ɔ ɹ ɪ s t WORD_BOUNDARY w ʌ z WORD_BOUNDARY s oʊ WORD_BOUNDARY v æ s t WORD_BOUNDARY ɪ t WORD_BOUNDARY ə ɹ ɹ ɪ d̠ʒ ɪ n ə l i WORD_BOUNDARY s t ɹ ɛ t̠ʃ t WORD_BOUNDARY b ɪ j ɔ n d WORD_BOUNDARY p ɛ n s ɪ l v eɪ n iə WORD_BOUNDARY