On Wed, 9 Nov 2022 14:12:43 -0800 (PST), "
[email protected]" <
[email protected]> wrote:
some kudu runner:
mm skull thickness
gorilla 3.6
chimp 5.3
australopith 5.6
H.sapiens 5.6
H.erectus 10.6
H.neanderth. 8.1
This is misleading,
Liar.
No, my little boy, it's the naked truth, based on firm empirical
evidence:
"Vault bone thickness dimensions in Asian H. erectus have considerable
overlap with terminal Pleistocene and recent Australian Aboriginal
populations, as wel as "archaic" H. sapiens. The absence of a firm
distinction between cranial vault bone thickness in H. erectus, H.
sapiens and Australopithecus precludes its use as an autopomorphic
trait in H. erectus."
It only shows that the Kow Swamp people dived a lot.
On the contrary, late Pleistocene Homo sapiens from Australia are a
nice refutation of the conjecture that skeletal robusticity in Homo
has anything to do with diving or other habitual aquatic activities.
because it depends very much on what comparative
sample of H. sapiens you use and where on the skull you measure
thickness. For example, Late Pleistocene H. sapiens from Australia
(Kow Swamp, Nacurrie, Coobol Creek, Keilor, Cohuna) from 14,000 to
9000 years BP have skull thickness at some points as thick or even
thicker than Homo erectus, or at least statistically not significantly
different, with the exception of the parietal eminence.
See table 3 in:
https://www.researchgate.net/publication/285087555_Cranial_vault_thickness_in_Asian_Homo_erectus_and_Homo_sapiens
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