Newly-identified ancient human species lived in Africa 500k years ago

Meet Homo bodoensis: Newly-identified ancient human species lived in Africa 500,000 years ago and was a direct ancestor of modern humans, 研究发现

  • 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 几年前
  • 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, 周围 500,000 几年前.

    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, 说过: ‘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, 但反而, 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, 但反而, 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 英尺 9 in tall and weighed almost 10 结石, while females averaged 5 英尺 2 在 (157 厘米) 和周围 8 结石.

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

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    在研究中, the researchers reassessed existing fossils from Africa and Eurasia dating back to the Middle Pleistocene period.

    传统上, these fossils have been identified as either Homo heidelbergensis or Homo rhodesiensis.

    然而, recent DNA evidence has shown that some fossils in Europe identified as H. heidelbergensis were actually early Neanderthals.

    与此同时, 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, 但反而, 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 英尺 9 in tall and weighed almost 10 结石, while females averaged 5 英尺 2 在 (157 厘米) 和周围 8 结石.

    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 几年前 – 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, 说过: ‘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 一百万年前 First primitive primates evolve

    15 一百万年前 Hominidae (great apes) evolve from the ancestors of the gibbon

    7 一百万年前 First gorillas evolve. 后来, chimp and human lineages diverge

    A recreation of a Neanderthal man is pictured

    A recreation of a Neanderthal man is pictured

    5.5 一百万年前 Ardipithecus, early ‘proto-humanshares traits with chimps and gorillas

    4 一百万年前 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 一百万年前Australoipithecus afarensis lived in Africa.

    2.7 一百万年前Paranthropus, lived in woods and had massive jaws for chewing

    2.6 一百万年前 Hand axes become the first major technological innovation

    2.3 一百万年前Homo habilis first thought to have appeared in Africa

    1.85 一百万年前First ‘modernhand emerges

    1.8 一百万年前Homo ergaster begins to appear in fossil record

    800,000 几年前 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 至 200,000 几年前Homo sapiensmodern humansappear in Africa

    50,000 至 40,000 几年前Modern humans reach Europe

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