ðə fˈɔːɹɪst bˈɛd wʌz fˈɔːɹmd ɪnðə kwətˈɜːnɚɹi pˈiəɹɪəd ænd dˈeɪts tə bᵻtwˌiːn sˈɛvənhˈʌndɹɪd,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ ænd fˈaɪvhˈʌndɹɪd,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ jˈɪɹz ɐɡˈoʊ.
The forest bed was formed in the Quaternary Period and dates to between 700,000 and 500,000 years ago.