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Pacific coastal groups of the period would have relied on fishing as the prime source of sustenance. [50] Archaeologists are piecing together evidence that the earliest human settlements in North America were thousands of years before the appearance of the current Paleo-Indian time frame (before the late glacial maximum 20,000-plus years ago). [51]
The Paleolithic or Palaeolithic (c. 3.3 million – c. 11,700 BC) (/ ˌ p eɪ l i oʊ ˈ l ɪ θ ɪ k, ˌ p æ l i-/ PAY-lee-oh-LITH-ik, PAL-ee-), also called the Old Stone Age (from Ancient Greek παλαιός (palaiós) 'old' and λίθος (líthos) 'stone'), is a period in human prehistory that is distinguished by the original development of stone tools, and which represents almost the ...
In the History of Mesoamerica, the stage known as the Paleo-Indian period (or alternatively, the Lithic stage) is the era in the scheme of Mesoamerican chronology which begins with the very first indications of human habitation within the Mesoamerican region, and continues until the general onset of the development of agriculture and other proto-civilisation traits.
Archaic period, (Archaic stage) (8000 – 1000 BCE) by Time Period Early Archaic 8000 – 6000 BCE Plano cultures: 9,000 – 5,000 BCE Paleo-Arctic tradition: 8000 – 5000 BCE Maritime Archaic: Red Paint People: 3000 – 1000 BCE Middle Archaic 6000 – 3000 BCE Chihuahua tradition: c. 6000 BCE – c. 250 CE Watson Brake and Lower Mississippi ...
Jōmon period c. 10,000 – 300 BCE Yayoi period c. 300 BCE – 250 CE Yamato period c. 250 – 710 CE China China Periods: Paleolithic c. 1.36 million years ago Neolithic period c. 10,000 – 2100 BCE Ancient China c. 2100 – 221 BCE Imperial period c. 221 BCE – 1911 CE Modern period. Americas North America North America: Lithic/Paleo ...
The Paleozoic (/ ˌ p æ l i. ə ˈ z oʊ. ɪ k,-i. oʊ-, ˌ p eɪ-/ PAL-ee-ə-ZOH-ik, -ee-oh-, PAY-; [1] or Palaeozoic) Era is the first of three geological eras of the Phanerozoic Eon. . Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma at the start of the Mesozoic Er
During this time, the climate became warmer and wetter, and it is possible that angiosperms evolved to become stenotopic by this time, able to inhabit a narrow range of temperature and moisture; or, since the dominant floral ecosystem was a highly integrated and complex closed-canopy rainforest by the middle Paleocene, the plant ecosystems were ...
Many crown node eukaryotes (from which the modern-day eukaryotic lineages would have arisen) have been approximately dated to around the time of the Paleoproterozoic Era. [12] [13] [14] While there is some debate as to the exact time at which eukaryotes evolved, [15] [16] current understanding places it somewhere in this era.