新たに特定された古代の人間の種は50万年前にアフリカに住んでいました

ホモ・ボドエンシスに会う: 新たに特定された古代の人間の種はアフリカに住んでいました 500,000 数年前、現代人の直接の祖先でした, 研究は見つけます

  • Scientists have reanalysed ancient fossils found in Africa and Europe
  • A skull found in Ethiopia was previously believed to be a differen ancient human
  • New analysis indicates it is a new species that lived 500,000 数年前
  • A skull of a new species of ancient human has been discovered in Africa that experts believe was a direct ancestor of modern humans.

    The new species has been named Homo bodoensis, and lived during the Middle Pleistocene, 周り 500,000 数年前.

    Researchers from the University of Winnipeg hope the discovery will bring some clarity to this era, during which human evolution is poorly understood.

    Dr Mirjana Roksandic, who led the study, 前記: ‘Talking about human evolution during this time period became impossible due to the lack of proper terminology that acknowledges human geographic variation.

    A new species of ancient human has been discovered in Africa that experts believe was a direct ancestor of modern humans (artist's impression pictured)

    A new species of ancient human has been discovered in Africa that experts believe was a direct ancestor of modern humans (artist’s impression pictured)

    In their new analysis, the researchers suggest that a skull found in Bodo D'ar, Ethiopia belongs to neither H. heidelbergensis or H. rhodesiensis, but instead, is a new species entirely

    In their new analysis, the researchers suggest that a skull found in Bodo D’ar, Ethiopia belongs to neither H. heidelbergensis or H. rhodesiensis, but instead, is a new species entirely

    What do we know about the new species?

    In honour of the location in which the skull was discovered, the researchers have named the species H. bodoensis.

    While little is know about the new species yet, the researchers believe that H. bodoensis had a short, stocky body adapted to conserve heat in colder climates.

    Males were likely about 5 フィート 9 in tall and weighed almost 10 stone, while females averaged 5 フィート 2 に (157 CM) と周り 8 stone.

    The species went extinct around 200,000 数年前 – long before modern humans migrated out of Africa.

    広告

    この研究で, the researchers reassessed existing fossils from Africa and Eurasia dating back to the Middle Pleistocene period.

    伝統的に, these fossils have been identified as either Homo heidelbergensis or Homo rhodesiensis.

    しかしながら, recent DNA evidence has shown that some fossils in Europe identified as H. heidelbergensis were actually early Neanderthals.

    その間, African fossils from this period have previously been identified as both H. heidelbergensis and H. rhodesiensis, confusing things even further.

    In their new analysis, the researchers suggest that a skull found in Bodo D’ar, Ethiopia belongs to neither H. heidelbergensis or H. rhodesiensis, but instead, is a new species entirely.

    In honour of the location in which the skull was discovered, the researchers have named the species H. bodoensis.

    While little is know about the new species yet, the researchers believe that H. bodoensis had a short, stocky body adapted to conserve heat in colder climates.

    Males were likely about 5 フィート 9 in tall and weighed almost 10 stone, while females averaged 5 フィート 2 に (157 CM) と周り 8 stone.

    While little is know about the new species yet, the researchers believe that H. bodoensis had a short, stocky body adapted to conserve heat in colder climates

    While little is know about the new species yet, the researchers believe that H. bodoensis had a short, stocky body adapted to conserve heat in colder climates

    The species went extinct around 200,000 数年前 – long before modern humans migrated out of Africa.

    Going forwards, most Middle Pleistocene humans from Africa and some from Southeast Europe will be classified as H. bodoensis, while many from the latter continent will be reclassified as Neanderthals,

    Predrag Radović, an author of the study, 前記: ‘Terms need to be clear in science, to facilitate communication. They should not be treated as absolute when they contradict the fossil record.








    The team hopes the findings will help to ‘cut the Gordion knotand allow clearer understanding of the Middle Pleistocene.

    Dr Roksandic added: ‘Naming a new species is a big deal, as the International Commission on Zoological Nomenclature allows name changes only under very strictly defined rules.

    ‘We are confident that this one will stick around for a long time, a new taxon name will live only if other researchers use it.

    In honour of the location in which the skull was discovered ¿ Bodo D'ar ¿ the researchers have named the species H. bodoensis

    In honour of the location in which the skull was discovered — Bodo D’ar — the researchers have named the species H. bodoensis

    WHEN DID HUMAN ANCESTORS FIRST EMERGE?

    The timeline of human evolution can be traced back millions of years. Experts estimate that the family tree goes as such:

    55 百万年前 First primitive primates evolve

    15 百万年前 Hominidae (great apes) evolve from the ancestors of the gibbon

    7 百万年前 First gorillas evolve. 後で, chimp and human lineages diverge

    A recreation of a Neanderthal man is pictured

    A recreation of a Neanderthal man is pictured

    5.5 百万年前 Ardipithecus, early ‘proto-humanshares traits with chimps and gorillas

    4 百万年前 Ape like early humans, the Australopithecines appeared. They had brains no larger than a chimpanzee’s but other more human like features

    3.9-2.9 百万年前Australoipithecus afarensis lived in Africa.

    2.7 百万年前Paranthropus, lived in woods and had massive jaws for chewing

    2.6 百万年前 Hand axes become the first major technological innovation

    2.3 百万年前Homo habilis first thought to have appeared in Africa

    1.85 百万年前First ‘modernhand emerges

    1.8 百万年前Homo ergaster begins to appear in fossil record

    800,000 数年前 Early humans control fire and create hearths. Brain size increases rapidly

    400,000 years agoNeanderthals first begin to appear and spread across Europe and Asia

    300,000 に 200,000 数年前Homo sapiensmodern humansappear in Africa

    50,000 に 40,000 数年前Modern humans reach Europe

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