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In geology, a debate remains open concerning the use of Myr (duration) plus Mya (million years ago) versus using only the term Ma. [1] [2] In either case, the term Ma is used in geology literature conforming to ISO 31-1 (now ISO 80000-3) and NIST 811 recommended practices.
3.5–3.0 Ma Kenyanthropus platyops, a possible ancestor of Homo, emerges from the Australopithecus. Stone tools are deliberately constructed, possibly by Kenyanthropus platyops or Australopithecus afarensis. [34] 3 Ma The bipedal australopithecines (a genus of the subtribe Hominina) evolve in the savannas of Africa being hunted by Megantereon.
Evidence for the "microscopic traces of wood ash" as controlled use of fire by Homo erectus, beginning roughly 1 million years ago, has wide scholarly support. [2] [3] Some of the earliest known traces of controlled fire were found at the Daughters of Jacob Bridge, Israel, and dated to ~790,000 years ago. [4] [5] At the site, archaeologists ...
A "minimalist" approach to human taxonomy recognizes at most three species, H. habilis (2.1–1.5 Mya, membership in Homo questionable), H. erectus (1.8–0.1 Mya, including the majority of the age of the genus, and the majority of archaic varieties as subspecies, [76] [77] [78] including H. heidelbergensis as a late or transitional variety [79 ...
Approximate extent of the Karoo Glaciation (in blue), over the Gondwana supercontinent during the Carboniferous and Permian periods. The late Paleozoic icehouse, also known as the Late Paleozoic Ice Age (LPIA) and formerly known as the Karoo ice age, was an ice age that began in the Late Devonian and ended in the Late Permian, [1] occurring from 360 to 255 million years ago (Mya), [2] [3] and ...
Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [4]
Australopithecus garhi is a species of australopithecine from the Bouri Formation in the Afar Region of Ethiopia 2.6–2.5 million years ago (mya) during the Early Pleistocene. The first remains were described in 1999 based on several skeletal elements uncovered in the three years preceding.
Acheulean tools in South Asia have also been found to be dated as far as 1.5 million years ago. [7] However, in 2003 examples of the Acheulean from the West Turkana region of Kenya were described [ 8 ] which have been dated through the method of magnetostratigraphy to about 1.76 million years ago, [ 9 ] and in 2023 finds from Ethiopia were ...