Why aren't Peking Man considered Heidelbergenssi?

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Discussion Overview

The discussion centers on the classification of Peking Man and Java Man as Homo erectus, while contemporaneous fossils in Europe are classified as Homo heidelbergensis. Participants explore the implications of geographic location and morphological differences in the classification of ancient hominids.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions why Peking Man and Java Man are classified as Homo erectus despite having similar brain sizes to Homo heidelbergensis fossils found in Europe.
  • Another participant notes that there are differing opinions on the classification of older hominids and references a study suggesting Peking Man fossils are older than previously thought, which may influence classification.
  • A participant mentions a related question about the classification of various hominid species, highlighting similarities in skull shape but differences in classification.
  • Some participants propose that classification may depend on geographic location and slight morphological differences, with some scientists suggesting a split of Homo erectus into separate species based on these factors.
  • There is a discussion about the robustness and body proportions of Homo erectus, with references to specific specimens like "Turkana Boy" and "Peking Man."

Areas of Agreement / Disagreement

Participants express differing views on the classification criteria for ancient hominids, indicating that multiple competing perspectives remain without a clear consensus.

Contextual Notes

Participants reference various sources, including articles and Wikipedia, to support their points, but the discussion does not resolve the underlying classification issues or assumptions about the species.

Calpalned
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7) Why are peking and java man considered homo

erectus, while the fossils of the same time period (600,000 BC) found

in Europe are considered Heidelbergensis? According to wikipedia,

peking man fossils had brain sizes from 1000 cc to about 1220 cc,

well within the range of Heidebergensis.
 
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Hi Calpalned, sorry I couldn't reply earlier, I'm a bit swamped right now, but wanted to get you started. There have been differences of opinion over classification of older hominids. I'm going to start you off with an article that describes the revision in age, and hope to follow up shortly with more about what separates the species.

Peking Man' older than thought

Iconic ancient human fossils from China are 200,000 years older than had previously been thought, a study shows. The new dating analysis suggests the "Peking Man" fossils, unearthed in the caves of Zhoukoudian are some 750,000 years old.
Continued...

http://news.bbc.co.uk/2/hi/science/nature/7937351.stm
 
Evo said:
Hi Calpalned, sorry I couldn't reply earlier
No worries, I'm actually thankful to even have a reply. I realized that my question is quite similar to the one here https://www.physicsforums.com/threads/perhaps-they-are-all-the-same-species.799820/ , where I asked about why erectus, ergaster, heidelbergensis and antecessor, despite having the same basic skull shape (except for increasing brain size) are labeled as different species.
 
They're good questions. It seems to come down to where specimens are found and slight differences.

Some scientists have split H. erectus into three separate species, based on the geographic region in which specimens have been found: H. ergaster (Africa), H. erectus (Asia), and H. heidelbergensis (Europe).

Generally, H. erectus (inclusive) is characterized by large molars, an unpronounced chin, heavy brow ridges, and a long, low skull, relative to modern Homo sapiens. The skeleton of H. erectus was heavier, or "more robust," than the average modern human skeleton. Body proportions vary greatly from individual to individual. "Turkana Boy" was tall and slender, like modern humans from the same area, while the few limb bones found of "Peking Man" indicate a shorter, sturdier build.
(See more below)

http://www.pbs.org/wgbh/evolution/humans/humankind/k.html

Wikipedia actually collects information from different sources on Peking man.

http://en.wikipedia.org/wiki/Peking_Man
 
Evo said:
They're good questions. It seems to come down to where specimens are found and slight differences.

(See more below)

http://www.pbs.org/wgbh/evolution/humans/humankind/k.html

Wikipedia actually collects information from different sources on Peking man.

http://en.wikipedia.org/wiki/Peking_Man

I see... In my opinion, it is rather interesting that modern humans from Asia, Europe and Africa are all classified as the same species while homo erectus from those three continents are separate... Anyway, thanks for the reply, I understand this concept better now.
 

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